LED headlight “Uni LED Pro” according to StVZO with integrated reflector, double cable connection, overvoltage protection, bracket and cable. >> Luminous intensity 40 lux >> on/off switch >> German approval mark
Mounting: Fork
Extra: Hub Dynamo
An irresistible mix of bright, small and affordable. It's the width that makes it: As surprising as the compactness of the Briq-S is its massive angular design, to which it also owes its name. An irresistible mix of light, small and cheap. Thanks to its compact landscape format, the Briq-S is optically perfect for central handlebar mounting, whereby the light module seamlessly fits into the shape of the bike, but it can of course also be mounted on the fork with conventional brackets. 60 Lux For DC 5-42 V Large-area light field Near-field illumination Connection for rear light (max. 0.8 W)
Type: Front Fork
Extra: E-bike
The Lynx Elite is an e-bike headlight with a light output of 60 lux, which can be easily mounted on all standard front forks. Thanks to its stylish design, this front light perfectly matches today's modern bicycles. The Lynx Elite guarantees good visibility in traffic, as the headlight is equipped with two lateral light outlets and has an integrated reflector. The design of the optical lens in combination with the sharp cut-off line at the edge of the light beam ensures a focused light field that does not blind other road users. The E-bike Elite headlight is StVZO-approved and thus meets the high German standards for bicycle lighting. A light output of 60 lux illuminates up to 80 meters and ensures that you are visible to oncoming traffic up to 4000 meters away.
Type: Front fork
Extra: E-bike
The NEOS series of headlamps from Spanninga combines a sleek design with powerful performance and is suitable for almost any type of bicycle. Thanks to its modern, compact design and universal, streamlined shape, the NEOS fits perfectly with both contemporary and classic frames. It's a true all-rounder that balances form, functionality, and affordability.
Type: Fork-mounted
Extra: Hub dynamo
The LED taillight for the KED Embrace MTB helmet is a practical accessory that provides extra visibility while cycling. This way, you easily contribute to an extra piece of safety, especially at dusk, in bad weather, and in the dark. Specifications: - Suitable for: KED Embrace MTB helmet - Type: LED taillight - Application: accessory - Function: extra visibility and safety - IP44 - USB rechargeable
The KED Meggy Spark LED taillight is a useful accessory for the KED Meggy Spark helmet and provides an extra layer of safety while cycling. Thanks to the LED lighting, the helmet is more visible in traffic, which is pleasant during twilight, rainy weather and in the dark. Specifications: - Suitable for: KED Meggy Spark helmet - Type: LED taillight - Application: accessory - Function: extra visibility and safety - Mounting: suitable for KED Meggy Spark - USB rechargeable
The AXA City Rear is a carrier rear light that you can easily mount on the luggage carrier with 80 mm bolt spacing. Because this rear light is battery-operated, it is a practical choice if your bicycle does not have a dynamo connection or if you cannot (or do not want to) use an e-bike connection. Ideal as a replacement for an existing rear light or as an upgrade to a neat, fixed carrier mount. With the on/off button you can quickly switch the light on or off. Supplied in blister packaging. Specifications: Brand: AXA Model: City Rear Type: carrier rear light (rear) Power supply: 2 x AAA batteries Mounting: 80 mm bolt spacing Installation: on luggage carrier On/off button Packaging: on card
The NEOS65 headlight with standlight from Spanninga combines a sleek design with powerful performance and is suitable for almost any type of bicycle. Thanks to its modern, compact design and universal, streamlined shape, the NEOS fits perfectly with both contemporary and classic frames. It is a true all-rounder that balances form, functionality, and affordability.
Type: Front fork
Extra: Hub dynamo
This headlight can be mounted on a suspension fork with a special in-sight connection. You can turn the light on and off yourself, but it also has an automatic function. Equipped with a dynamo connection.
Specially designed for typical Dutch city bikes, the SPX is still popular and its retro style is still appreciated. Equipped with one LED and a large reflector, it is a robust fender rear light. Technical specifications: Light source: 1 red LED 5 Cd Power supply: dynamo Functions: - Weight
The sporty, high-end battery-powered headlight Powerful. Robust. Premium beam pattern - 90 Lux light output (High Power mode). Weighs only 98 grams (without battery/cable). Test winner in Europe's largest road bike magazine. Use of a second headlight, perfect for racing situations: superior light output up to 180 Lux. 90 Lux Suitable for handlebar diameters from 21 to 32 mm Capacity indicator Splash and rain resistant
Easy and stylish Its shape: delicate design with very clear lines. Its function: a robust 35 lux headlight with close-range light and sensor + standing light function. With daytime running light LICHT24: additional forward-facing signalling LEDs attract more attention in daylight. Standing light function and an ON/OFF switch are also included. 35 Lux Close-range light Standing light Motion sensor On/off switch Front reflector Lateral light emission
The LS 360 I-GO® ECO with 25 LUX is ideal for urban environments. It features a rechargeable lithium-ion battery and offers safety with its side lighting. The LS 360 I-GO® ECO can be mounted without tools and is also StVZO approved. Features: USB charger port Light duration up to 4 hours Lithium-ion battery Made in Germany Start-up protection Single click closure 1 level Battery indicator Tool-free bracket ZL 760 25 LUX 45 m field of vision 2750 m visibility StVZO approved
Classic design with IQ technology Compact, elegant, dynamic. Its classically puristic form is one of the reasons for the enormous success of the Cyo. Another reason is the formidable performance spectrum of the IQ technology, which is housed in a minimalist casing. Stainless steel mounting bracket and screw emphasize the high quality. This IQ-Premium version offers an extensively wide and even beam pattern at 60 Lux! Lumotec series 60 Lux Extensive light field Close-range light Sensor automatic Parking light On/off switch
The LS 460 I-GO POWER with 40 LUX is ideal for urban and rural environments. It comes with 2 light levels and a rechargeable Lithuanian ion battery. The LS 460 I-GO Power offers additional safety with side lighting. The included bracket ZL 760 allows for tool-free mounting. The LS 460 I-GO Power StVZO is of course approved. Product details: Switch-on protection Snap lock with one hand Light sources: LED Luminous intensity: 40 Lux Light duration (min): up to 8 hours Field of vision: 60 m Visibility: 3500 m Power supply Power source: Rechargeable battery/Battery Details power source: Lithium-ion battery USB connection: yes
Perfectly suited for old-school bikes such as classic Dutch bicycles, transport bikes, or cruiser bikes, the Trendo revives nostalgia with its fifties 'look'. The Trendo goes back to a time when headlights were simple: torpedo-model housing and integrated flap in the glass. Technical specifications Version: Xb Light source: 1 white LED 10 Lux Power supply: Batteries 3 x AA 1.5V (Xb) Battery life: 100h (Xb) Danish regulations: 180h (Xb) Low battery indicator: - Weight: Colour: Black
The AXA Run is an LED battery-powered rear light for fender mounting. Very suitable for mounting on retro and Dutch-style bicycles. This rear light has a battery life of up to 50 hours and an easy-to-use control button. LIGHT: 500 meters visibility. SAFETY Power LED, more than 50,000 hours lifespan COMFORT Easy battery replacement Easy-to-operate on/off button Fender mounting Battery replacement warning indicator TECHNOLOGY Battery operated Battery life: 50 hours Includes 2 AAA batteries Modern and compact design for fender mounting Water and shock resistant
Complete Spanninga set, consisting of the Galeo XDO LED headlamp with dynamo and cable. The GALEO is a modern, affordable, and well-thought-out LED headlamp with an integrated reflector and 1 white LED with an output of 4 Lux. This lamp can be mounted in various ways, as it fits a wide range of brackets. The JS8 is a standard 6V 3W dynamo for left-side mounting. Technical specifications: Versions: Xdo / Xb Light source: 1 white LED 4 lux Power source: Dynamo (Xdo) | Batteries 2 x AA 1.5 V (Xb) Autonomy: 40h (Xb) | Danish regulations: 40h (Xb) Battery charge indicator: Yes (Xb) Features: - Weight:
Small, but highly mobile. On and off with a simple click IQ2 technology. Very good and homogeneous illumination of the road. Fits all handlebars with a diameter of 25.4-31.8mm. Surrounding soft part provides protection against shocks. Charged via micro-USB port (charger and cable included). The weight is only 112 grams (including battery and bracket). Ixon Series 50 Lux Close-range light Integrated lithium battery Battery level indicator Splash and rain water resistant Approved by German traffic regulations High Power mode: 50 Lux (3 hours) Low Power mode: 12 Lux (15 hours) Suitable for handlebar diameters from 21 to 32 mm
Design classic with IQ technology Compact, elegant, dynamic. Its classically pure form is one reason for the immense success of the Cyo. Another is the formidable performance spectrum of the IQ technology, which is housed in a minimalistic casing. A stainless steel mounting bracket and screw emphasise the high quality. Available in a range of versions to suit different needs. This IQ Premium version offers an extensive wide and even beam pattern at 60 Lux! With daytime running light LICHT24: Four additional signal LEDs shine below the IQ main LED. The stand light function is performed by two signal LEDs. Lumotec series 60 Lux Wide light field Daytime running lights Close-range light Sensor automatic Stand light On/off switch Front reflector
Perfect for old-school bikes such as classic Dutch bicycles, cargo bikes, or cruiser bikes, the Trendo revives nostalgia with its fifties look. The TRENDO goes back to a time when headlights were simple: torpedo-model housing and integrated flap in the glass. The TRENDO is equipped with 1 white LED and has a light output of 10 Lux. Product specifications: Brand: Spanninga Primary color: black Secondary color: transparent Country of origin: China Gross height in centimeters: 6.8 Gross length in centimeters: 17.0 Gross weight in kilograms: 0.124 Gross width in centimeters: 14.7 Primary material: mixed material Unit content: 1 piece Product length in centimeters: 9.5 Number of products in outer box: 24.0 Packaging type: Box Product type: front lights Warranty in months: 24
The AXA Compactline 35 is a compact and sporty dynamo headlight with a surprisingly high light output of 35 lux. The AXA Compactline 35 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road ahead. The robust bracket is suitable for all road types, but can also be replaced by a bracket for semi-integration with the most common front forks. LIGHT BEAM: 55 meters visibility, 3250 meters visibility by others. Safety Clear lens technology, you are also visible from the side to other traffic Complies with German (StVZO) regulations Comfort Compact sporty design Pleasant light pattern thanks to our dual lens technology Technology 35 lux LED, more than 50,000 operating hours Integrated reflector
The Lumotec IQ Myc N Plus dynamo headlamp is the entry-level model of Busch & Müller's high-quality bicycle lighting range. The lamp has an attractive design and, thanks to the innovative IQ light technology, illuminates the road ahead with 50 lux in a very good and uniform manner. The light emitted from the side of the IQ Myc N headlamp also ensures better visibility and safety in the dark. This Plus version is equipped with a standlight function. Specifications 50 lux optimized near-field illumination on/off switch standlight motion sensor LED IQ technology: a special reflector and an optimized cooling system with a high-efficiency LED as an indirect light source for a wide, even and precise light field splash and rain proof connection option for a taillight clickable front reflector StVZO approval (only relevant for use in Germany) Weight: approx. 68 grams
The AXA Compactline 20 is a compact and sporty dynamo headlight with a surprisingly high light output of 20 lux. The AXA Compactline 20 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road ahead. The robust bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with most common front forks. LIGHT BEAM: 40 meters vision, 2500 meters visibility. Safety Clear lens technology, you are also visible from the side to other traffic Complies with German (StVZO) regulations Comfort Compact sporty design Pleasant light image thanks to our dual lens technology Technology 20 lux LED, more than 50,000 burning hours Integrated reflector
The AXA Compactline 20 is a compact and sporty dynamo headlight with a surprisingly high light output of 20 lux. The AXA Compactline 20 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road ahead of your bicycle. The robust bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with most common front forks. LIGHT BEAM: 40 meters vision, 2500 meters visibility. Safety Clear lens technology, you are also visible to other traffic from the side Complies with German (StVZO) regulations Comfort Compact sporty design Pleasant light pattern thanks to our dual lens technology Technology 20 lux LED, more than 50,000 burning hours Integrated reflector
The AXA Compactline 20 is a compact and sporty dynamo headlight with a surprisingly high light output of 20 lux. The AXA Compactline 20 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you good visibility of the road ahead of your bike. The robust bracket is suitable for all road types, but can also be replaced by a bracket for semi-integration with the most common front forks. This version has been specially developed for connection to a 6-12V E-bike battery. LIGHT BEAM: 40 meters vision, 2500 meters visibility. Safety Clear lens technology, you are also visible to other traffic from the side Complies with German (StVZO) regulations Comfort Compact sporty design Pleasant light image thanks to our double lens technology Technology 20 lux LED, more than 50,000 operating hours Integrated reflector Suitable for 6-12V E-bike battery
The AXA Riff is the first rear light to feature light guide technology. Thanks to a combination of LED technology and advanced light control, the Riff is illuminated across its entire width. Because the light beam also extends to the side of the rear light, you are also clearly visible to traffic approaching you from the side. The integrated stand light function ensures that you remain visible to other road users even when stationary, as the light stays on for at least 4 minutes. The Riff is available in two different mounting distances: 50 or 80 mm. LIGHT: 600 meters visibility. SAFETY LED lighting, more than 50,000 hours of operating time Steady function; parking light, your lamp stays on for 4 minutes when stationary Light guide technology, the entire rear light is illuminated, even on the side Complies with German (StVZO), French and Danish legislation COMFORT Mounting on center distance 50 or 80 mm TECHNOLOGY Dynamo operated Suitable for use with 6V e-bike battery Integrated reflector Water and shock resistant
The Edge Razor has a compact design, high light output, and is very user-friendly, and it's also USB-rechargeable. The Edge Razor rear light is easy to attach and convenient to carry. This light can be fitted to almost any bicycle thanks to its flexible rubber attachment strap and is built to withstand impacts. The lights are sustainably rechargeable via the included USB cable. Enjoy up to 4 hours of cycling with a charged battery after just 1.5 hours of charging. With a lifespan of 1000 recharges, the Edge Razor offers a sustainable alternative to regular battery-powered lights. Always clearly visible thanks to the powerful LED. The Razor guarantees operation at temperatures between -10 and +40 C, even in rain and snow. Product details: Light visibility 300 meters. Safety: 1 LED with over 50,000 hours lifespan. Comfort: Easy-to-operate on/off switch. Attachment strap diameter 10-32. Battery operated, Battery life: 4 hours, Rechargeable via included USB cable
The Blueline30 is a small, compact dynamo headlight with a surprisingly high light output of no less than 30 lux. The Blueline30 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road in front of your bicycle. This light switches on and off automatically via the automatic light/dark sensor, and the light remains on for 4 minutes when you are stationary. The robust bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with the most common front forks. LIGHT BEAM: 60 meters visibility, 3500 meters visibility to others. SAFETY Automatic light/dark sensor Steady function, 4 minutes of light when stationary Clear lens technology, you are also visible to other traffic from the side Complies with German (StVZO) and French regulations COMFORT Compact sporty design Pleasant light pattern TECHNOLOGY 30 lux LED, more than 50,000 burning hours Integrated reflector For hub and side dynamo
HERRMANS® new headlight bright Nordic PRO has brought a touch of automotive technology into cycling, by partnering with Nordic Lights. Nordic PRO is the first bicycle headlight suitable for all types of e-bikes 25km/h-45km/h. The light alloy housing ensures efficient cooling of the LEDs and the robust glass lens provides extremely good UV and scratch resistance. Thanks to its clever bracket solution, it can be mounted on the handlebar as well as on the stem or on the fork. The dipped beam offers 650 lumen and 120 lux. Key features: Extremely sharp cut-off line and wide light pattern Suitable for all e-bikes 25-45 km/h A powerful and robust front light Technical specifications: Operational lumen output: dipped beam: 650 lm Power source: E-bike Rated voltage DC: 12V Power consumption: 10 W Input connector type: Cable Number of LEDs: 1 Colour temperature: 5700K Optical system: projector Operating modes: ON (dipped beam) Mounting options: handlebar / stem / fork Housing: Alloy Salt spray test: ISO 9227 240h Type approval (light): ECE R113, class B & StVZO EMC: EN 15194
With its 5 LEDs and years of experience, the AXA Omega has more than proven itself in the field of LED lighting. The Omega is one of the most user-friendly products in the AXA taillight range. The taillight is operated by an on/auto/off switch. This means that the taillight has an automatic light/dark and motion sensor. The product also features a standlight function, so you still have light for 4 minutes when stationary, remaining clearly visible to other traffic. The integrated battery indicator warns you when it's time to replace your batteries. The Omega can be mounted at 50 or 80 mm width. LIGHT: 800 meters visibility. SAFETY 5 LEDs with a lifespan of over 50,000 hours, placed in a semi-circle, making you clearly visible from the side COMFORT On/auto/off switch. With this version, your taillight automatically switches on or off when needed Battery replacement warning indicator Mounting at 50 or 80 mm center distance TECHNOLOGY Battery operated Battery life: 40 hours Includes 2 AA batteries
The Blueline30 is a small, compact dynamo headlight with a surprisingly high light output of no less than 30 lux. The Blueline30 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road in front of your bike. This light switches on and off automatically via the automatic light/dark sensor, and the light stays on for 4 minutes when you stop. The robust bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with most common front forks. LIGHT BEAM: 60 meters visibility, 3500 meters visibility for others. SAFETY Automatic light/dark sensor Steady function, 4 minutes of light when stationary Clear lens technology, you are also visible to other traffic from the side Complies with German (StVZO) and French regulations COMFORT Compact sporty design Pleasant light pattern TECHNOLOGY 30 lux LED, more than 50,000 operating hours Integrated reflector For hub and sidewall dynamo
Truly high beam for e-bikes 300 Lux in low beam mode. That's a statement from the new IQ-XL from Busch + Müller. It goes far beyond all previous light output values. The extensive light field is wide, long, and homogeneous, but as with any headlight approved for road use, the light/dark boundary is exact. With the press of the ergonomic handlebar button, all boundaries disappear: with 250 Lux, the high beam shines even further and higher than ever before. Previously obscured areas are brightly lit, and all obstacles are clearly visible. Sensor-controlled DRL ensures the best visibility. High-quality black powder coating on an aluminum housing and a newly designed mounting bracket make the IQ-XL a design headlight for electric e-bikes. The handlebar button illuminates green in low beam mode and blue in high beam mode. It can be mounted on all handlebars or combined with suitable Magura and Tektro brake levers to save space. 300 Lux Suitable for 11-48 V DC power supply High beam headlight Normal mode: 300 Lux Pressing the handlebar button activates the 250 Lux high beam Requires a minimum of 16 W rated power from the drive system's light connection
The SPX rear light is designed for real Dutch bicycles. In terms of style, it harks back to days of old. But in terms of technology, it is absolutely a contemporary fender rear light! It is a popular product, not only on retro bikes but also on modern city bikes. This is due to its robust design, durable LED technology, and large reflector. The SPX offers a safe and reliable battery-powered rear light in a classic and universal casing. Highlights The SPX rear light is very strong and therefore ideal for use in the city. Do you want even more protection? Then the SPX can be combined with the BR 08 protection bracket. This makes the light even more resistant to shocks and falls. Specifications: Light source 1 red LED 5 Cd Power supply Batteries 2 x AAA 1.5V Autonomy Max. 70h Danish regulation: max. 70h Battery charge indicator Yes Functions - Weight Batteries not included (2x AAA, 1.5 Volt) The SPX also has a dynamo version with or without a standlight; the rear light stays on for another 4 minutes after you stop cycling! Easy to mount and powerful! With stainless steel mounting material. The SPX complies with German, French, and English standards.
The AXA Pico30-T is a mini powerhouse with a light output of 30 lux. Its compact and sleek design is a great addition to sporty bikes. The Pico30-T offers an integrated retroreflector and daytime running light. Both functions have been specially developed to increase your safety by making you more visible to oncoming traffic, not only at night but also during the day. The robust stainless steel bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with the most common front forks. LIGHT BEAM: 60 meters visibility, 3500 meters visibility to others. SAFETY High power 30 lux LED lamp, more than 50,000 hours lifespan Daytime running light; 30 lux main beam at night, 10 lux main beam + 2 extra bright safety LEDs during the day Integrated retroreflector for passive safety Clear lens technology, you are also visible to other traffic from the side Complies with German (StVZO) and French regulations COMFORT Ergonomic control button Available with on/off switch. TECHNOLOGY Optimal light distribution through special lens technology Compact, sporty design Stainless steel bracket; other mounting brackets for semi-integration available Suitable for use with side dynamo or hub dynamo
The AXA Pico 30 is a mini powerhouse with a light output of 30 lux. Its compact and sleek design is an asset to sporty bikes. The Pico30 offers an integrated retroreflector and optimal light distribution. Both features have been specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road ahead of your bike. The robust stainless steel bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with most common front forks. LIGHT BEAM: See 60 meters, be seen from 3500 meters. SAFETY High power 30 lux LED lamp, more than 50,000 hours lifespan Integrated retroreflector; you are more visible to oncoming traffic Clear lens technology, you are also visible from the side to other traffic Complies with German (StVZO), French and Danish regulations COMFORT Ergonomic control button Available with on/off switch TECHNOLOGY Suitable for use with 6V e-bike battery Optimal light distribution through special lens technology Compact, sporty design Stainless steel bracket; other mounting brackets for semi-integration available Suitable for use with side-running dynamo or hub dynamo
The Presto 2 from Spanninga is one of the most compact and lightweight rear lights in Spanninga's range. This makes the PRESTO 2 ideal for anyone who doesn't want to spend a lot of time attaching and maintaining bicycle lights. Highlights The Presto 2 from Spanninga is very practical; thanks to the rubber O-ring, you can quickly and easily attach the Presto 2 to your bicycle's seat post (varying in diameter from 25-35mm), without tools. This makes the Presto 2 a very universal light that can be used on almost any type of bicycle. Functions & Performance The Presto 2 has a light output of 4 Candela and a discreet and convenient button, which is very easy to use to switch your light on and off. The Presto 2 is also very handy to attach and detach, after which you can put it in your jacket pocket or bag, preventing it from being stolen. The Presto 2 has a burn time of 10 hours and runs on only 2 coin cell batteries. The low-battery indicator signals when you need to replace the batteries. This is very simple: no tools required, a coin is sufficient. Technical specifications Light source: 1 red LED 4 Cd Power supply: Batteries 2 x LR44 1.5V Power consumption: 0.2 Watt Autonomy: Max. 10 hours Battery charge indicator: Yes Functions: - Weight:
The AXA Pico30 is a mini powerhouse with a light output of 30 lux. Its compact and sleek design is an asset to sporty bikes. The Pico30 offers an integrated retroreflector and optimal light distribution. Both features are specially developed to increase your safety by making you more visible to oncoming traffic and giving you a good view of the road ahead of your bike. The robust stainless steel bracket is suitable for any road type, but can also be replaced by a bracket for semi-integration with the most common front forks. LIGHT BEAM: 60 meters visibility, 3500 meters visibility to others. SAFETY High power 30 lux LED lamp, more than 50,000 hours lifespan Integrated retroreflector; you are more visible to oncoming traffic Clear lens technology, you are also visible from the side to other traffic Steady function; parking light, your light stays on for another 4 minutes while you are stationary Complies with German (StVZO), French and Danish regulations COMFORT Ergonomic control button Available with on/auto/off switch. This version has an automatic light/dark sensor that switches your light on or off by itself. TECHNOLOGY Optimal light distribution thanks to special lens technology Compact, sporty design Stainless steel bracket; other mounting brackets for semi-integration available Suitable for use with sidewall dynamo or hub dynamo