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Taillights (battery/USB)

$29.95
- Light guide for INCREASED VISIBILITY AND SAFETY - MEMORY FUNCTION remembers the last mode used - Fully USB-RECHARGEABLE - Compact size - Bracket with flexible mounting option - .06 LUX - 5 Modes - Run time on Eco = 36 hrs - Run time on High Steady = 20 hrs
$19.99
-PB power array and reflector provide visibility for up to 1 mile -Steady, Superflash and Courtesy flash modes -Ultra compact case is weatherproof, lightweight, and durable -Rear rack and seat post mounts included -Up to 150 hours of run time on 2 AAA batteries (included) -85 grams
$9.95
Be seen with CatEye's Omni 3 Taillight, which uses Omni Directional Technology for 360 degrees of visibility. Three super-bright LEDs light up in three different modes so you can customize the pattern and get run times up to 200 hours. Plus, CatEye's tool-free mount makes installation a breeze.
$29.99
The PDW Kepler eBike Tail Light offers up 220 degrees of visibility. Compatible with any 6V-15V system, this light has 3 super-bright red LED's. Equipped with a pre-installed Bosch plug, the Kepler eBike Tail Light is ready to plug directly into any Bosch eBike system. The Bosch plug can also easily be clipped off for direct wiring into other eBike systems. - Seatpost or seatstay mounting - 220 degrees of visibility - 25 Lumens - 48" cable length - Remove Bosch plug to work with any 6V-15V e-bike system
$29.99
The PDW USB-rechargeable Io taillight has two super-bright LEDs for a great value, and offers a super-quick charge time of only 2.5 hours. The Io has 3 different modes, steady, flash, and pulse, and is perfect for urban riding. - 3 modes (runtime) Steady (10h) Flash (20h) Pulse (20h) - Seatstay mount included - UV-proof rubber strap bracket for easy on and off included - Includes Micro USB-recharging cord
$39.99
Lezyne Stick Drive Taillight: Innovative cycling taillight featuring an integrated machined aluminum Ø35.4 MM seat clamp. By replacing the seat clamp with a slender, lightweight design, the Stick Drive Seat Clamp reduces hardware and saves space—ideal for mountain bikes with dropper-style seatposts. Eight high-powered LED emitters offer top visibility and seven output modes, including a daytime flash mode (up to 30 lumens) and our Wide-Angle Optics for up to 270-degree of visibility. An innovative magnetic interface allows the light to easily detach from the mount for quick and easy charging accessibility. The light itself is housed in a co-molded Composite Matrix body that’s durable and features an IPX7 waterproof rating. A built-in USB stick allows for cable-free charging and up to 23 hours of runtime. - 30 lumen - USB rechargeable - 34.9-35.4mm seat clamp mount with magnetic clip - 2 solid and 5 flash modes
$21.99
This is the “Next Generation” of our compact and versatile fast-mounting bike lights. Their mission: to help cyclists boldly go where no cyclist has gone before. - High output surface mounted LED provides steady, Courtesy, and Superflash modes - FL1 tested run time: 4.5 hrs (steady – 5 lm), 7 hrs (Courtesy™ 1.5-4.5 lm) and up to 22 hrs (Superflash - 5 lm) - Side cut outs provide 270° of visibility - Dust & water resistance rated to IP54 standard - 270 mAh lithium polymer battery charges in 2 hours with micro USB cable (included) - Diminutive size and fast mounting rubber strap mounts to multiple mounting locations in seconds without tools - 25 grams
$49.99
The NiteRider Sentry Aero 260 is a lightweight, aero taillight featuring dual LED light strips to deliver 260 lumens of Daylight Visible red light. An inner and outer lens design helps to shape light output, producing long-range visibility when viewed directly from the rear, but also providing ample surrounding light to the peripheral, making the Sentry Aero 260 visible from nearly any angle. - Daylight Visible Flash (DVF) - 260 lumen super bright tail light - Group Ride Mode – be seen without distracting fellow cyclists - Easy on and off Aero seat post strap mount with quick release tab - Aero seat post strap included - Convenient USB rechargeable - Super bright Daylight Visible Flash mode - Innovative Aero shape with excellent side visibility - FL1 Standard IP64, dust and water-resistant WARRANTY - The Sentry Aero 260 is backed by NiteRider's lifetime warranty that covers any defects in material and workmanship, mechanical components (housings, covers, mounts and fasteners) and LEDs. SYSTEM INCLUDES - LED Tail Light - Seat post Mount - USB Cable
$40.00
The future of cycling taillights is here. Vya is a game-changing design, blending powerful output with revolutionary smart features. The piercing 50 lumen output is easily visible over a distance of 1km, even in bright daylight. What separates Vya from traditional taillights are smart auto-on/off sensors – start riding and the light turns on automatically and will shut itself off after the ride, with a delay built in for stoplights. The scientifically designed SafePulse beam pattern not only gets noticed from motorists, but allows the driver to accurately judge distance from the rider and their direction of travel – a safety feature not possible with strobing lights. Attaching Vya is effortless with a simple clockwise 1/4 turn into the mount locking the light in place and activating the auto-on feature. When it comes time to recharge, remove Vya from the mount in seconds and insert the integrated USB paddle directly into a computer or USB power outlet – no cables keeps recharging simple and convenient. The next evolution in bike safety, Vya takes powerful safety lighting and keeps the rider safe so they can focus on the road ahead. Features - 50 Lumen Output certified to the FL-1 Standard with high powered premium CREE LED - Smart sensor technology senses motion and automatically turns Vya on when inserted into mount and will remain on, even when a rider pauses at stoplights - Auto-off when bike is parked or light is removed from mount to prevent the dreaded ‘dead bike light’ when it comes time for the next ride - SafePulse beam pattern scientifically designed to enhance a passing driver’s ability to judge the cyclist’s distance and direction of travel without the risks associated with flashing lights - Beam pattern optimized to give a wide red swath of light that can be seen clearly from the rear and side ideal for city riding - An impressive 8 hour runtime allows Vya to be used on multiple rides before needing a recharge, low battery status is indicated by rapidly flashing sidelights - Ultra-compact mount with durable rubber strap designed to be compatible with various size seat posts and can even be attached to seat stays - USB Mount Receptor allows light to be securely mounted or removed from bike in seconds with a simple, secure 1/4 turn lock; light will not turn on when removed from mount - Direct USB charging without cables fully charges in 2 hours - Made with bio-renewable material waterproof to 1 meter (when inserted in mount) for all-conditions reliability (IP67 Rated) Specifications - Lumens: 50 (SafePulse) - Runtime: 480 min (SafePulse) - Beam Angle: 30° (flood) - Charge Time: 120 min
$45.00
Safety is job #1 and the Vya Series delivers premium safety with the convenience commuters love. Vya Switch is the latest addition to the Vya Family, foregoing auto on/off technology for a traditional button design. Why the new design? We had multiple requests from riders who loved the power and simple effectiveness of our Vya taillight but wanted to adjust runtime or change to a solid mode for group riding and bike path commutes. The button control also allows cyclocross and mountain bikers who hit pavement en route to the dirt the ability to turn the light on/off as needed. Oh yeah, did we mention the purists who are so accustomed to manually turning their lights on and off that not doing so creates that 'Did I forget Something' feeling? Yes control freaks – Vya Switch is for you! - 100 Lumen Output certified to the FL-1 Standard with high powered premium CREE LED - Switch control provides multiple modes for longer runtime plus a solid mode perfect for bike paths/group rides - Designed for traditionalists, Vya Switch is turned on/off by button (does not have the auto on/off feature of other Vya Lights) - SafePulse beam pattern scientifically designed to enhance a passing driver's ability to judge the cyclist's distance and direction of travel without the risks associated with flashing lights - Horizontal design with custom optic gives a powerful, concentrated burst of light to be recognizable over 2KM away – perfect for road cyclists - 100 lumen SafePulse output maintains safety for a full 6 hours; for all-day adventures switch to 50 lumen SafePulse mode for an impressive 12 hours runtime - Ultra-compact mount with durable rubber strap designed to be compatible with various size seat posts and can even be attached to seat stays - USB Mount Receptor allows light to be securely mounted or removed from bike in seconds with a simple, secure 1/4 turn lock - Direct USB charging without cables fully charges in 2 hours - Made with bio-renewable material waterproof to 1 meter (when inserted in mount) for all-conditions reliability (IP67 Rated) - Lumens: 100 (high), 50 (medium), 25 (low), 100 (SafePulse) - Runtime: 360 min (high), 720 min (medium), 240 min (low), 360 min (SafePulse) - Beam Angle: 30° (flood) - Charge Time: 120 min - Fast Charge: No - IP Rating (FL-1): 67 - Depth Rating (FL-1): 1 meter(s) - Impact Resistance (FL-1): 1 meter - Product Weight: 30 grams - Product Dimensions: 2.6" x 1.3" x 0.8" - Compatible Mounts: Seat Post
$74.99
NiteLink Wireless Technology allows the rider to pair and simultaneously power on/off the Lumina Max headlight and Omega EVO 300 taillight wirelessly. Lumina Max headlight and NiteLink Remote sold separately. - Maximum 300-lumen output - Run time: 6:00—36:00hrs - Charge time: 2:15hrs - Group Ride Mode: Be seen without distracting fellow cyclists - 2 light levels, 3 flash modes - FL1 Standard IP64 Water Resistant - 79g Includes: - Daylight visible tail light, easy on/off seatpost strap mount, and USB charging cable
$54.95
250 lumens packed into an unbelievably compact form, the all-new Hypershot 250 is the latest and greatest from the originators of the most powerful line of LED bike tail lights. This powerful dual LED tail light puts out ultra-bright 250 lumen flashes in an extra-wide and long-range beam pattern that makes cyclists stand out both day and night. The 2 button design on the Hypershot lets cyclists control the speed of each flash mode and the brightness of the steady mode to their preference. And with 7 unique lighting modes and a run time range of 2 to 200 hours (yes, really), you won’t go unnoticed. (patent pending) - Powerful 250 lumen flashes to be seen day and night - Unique 2-button design lets you adjust the speed of each flash mode and the brightness of the Steady mode - Dual LED optics throws a long-range, extra-wide beam - Daytime visible flashes make you stand out on busy streets - 7 lighting modes for day and night use (Steady - Zoom - SteadyPulse® - Bzzz Flash - Triple Flash - DayLightning® Flash - Random Flash) - SteadyPulse® mode features a steady beam to help motorists gauge their distance while overlapping pulses keeps them alert at night - DayLightning® flash mode bursts lightning-like flashes to make you stand out in broad daylight on busy streets - Zoom mode signals those around you with gentle changes in brightness - All-new Bzzz Flash mode alerts those around you with highly visible fast buzz-like flashes - Hard seat post mount and seat stay mount securely attaches onto seat posts and seat stays - Light mode memory saves the mode you're in before the light is turned off - Durable and weighs only 60 grams - IP64 water-resistant for use in all weather conditions - USB rechargeable with 2 to 200 hours of run time and 3 hours fast charging - Low battery indicator alerts you when a charge is needed Patent pending. *Features and specs are subject to change without notice.
$10.00
Make sure you have excellent rear visibility at night with the Blinky 3. This sweet taillight aims 3 bright LEDs directionally to provide visibility from up to a mile away. Its soft-touch power switch accesses flashing or steady modes for up to 100 hours of run time on the 2 AAA batteries (included). And, it includes seatpost and seatstay mounts.
$17.95
- Compatible with 6-12V E-bike battery - Integrated reflector - Water and shock resistant - Mounting distance 80 mm - Visible from the side - 40g
$15.99
Maximize your visibility with this amazing taillight. The Blinky 7 aims 7 bright LEDs directionally to provide over 220 degrees of light visible from up to a mile away! The ultra-compact case is weatherproof, light and durable. And, the Blinky 7 includes a bike mount, clip mount and arm strap. Plus, the included 2 AAA batteries offer run times of up to 100 hours.
$39.95
Engineered for the ultimate road cyclist, the Hotrod™ 90 unleashes a powerful 90 lumens of flashing output for unprecedented night and day cycling safety. Its cluster mounted array of LEDs work in unison for an extra-wide and powerful output, maximizing your presence on the demanding roads. Be seen all the time with 24/7 Safety Technology™, an exclusive set of solid and flashing modes to increase your safety when cycling, night and day. Every bit the road cyclist’s tail light, the Hotrod 90 uses a Versatite™ flexible mount compatible with most seat posts including aero styles. Performance - 90 lumen red tail light with 6 lighting modes engineered for use on roads and commuting - Continuous array of LEDs work in unison to illuminate an extra-wide and powerful glow - Ultra low profile, water-resistant design only weighs 35 grams - USB rechargeable, internal battery lasts up to 100 hours - Water-resistant design - 1:30 ~ 100 hr run time - System weight: 35g Technology and Safety - 6 modes: High Flash - SteadyPulse® - Zoom - Group - Low Flash - High Steady - SteadyPulse's steady beam helps motorists better gauge their distance from you while the overlapping pulses keep them alert of your presence - Sturdy and flexible Versatite™ mount attaches to most seat posts and seat stays, including aero styles *Features and specs are subject to change without notice.
$59.95
350 lumens packed into an unbelievably compact form, the all-new Hypershot 350 is the latest and greatest from the originators of the most powerful line of LED bike tail lights. This powerful dual LED tail light puts out ultra-bright 350 lumen flashes in an extra-wide and long-range beam pattern that makes cyclists stand out both day and night. The 2 button design on the Hypershot lets cyclists control the speed of each flash mode and the brightness of the steady mode to their preference. And with 7 unique lighting modes and a run time range of 2 to 200 hours (yes, really), you won’t go unnoticed. (patent pending) - Powerful 350 lumen flashes to be seen day and night - Unique 2-button design lets you adjust the speed of each flash mode and the brightness of the Steady mode - Dual LED optics throws a long-range, extra-wide beam - Daytime visible flashes make you stand out on busy streets - 7 lighting modes for day and night use (Steady - Zoom - SteadyPulse® - Bzzz Flash - Triple Flash - DayLightning® Flash - Random Flash) - SteadyPulse® mode features a steady beam to help motorists gauge their distance while overlapping pulses keep them alert at night - DayLightning® flash mode bursts lightning-like flashes to make you stand out in broad daylight on busy streets - Zoom mode signals those around you with gentle changes in brightness - All-new Bzzz Flash mode alerts those around you with highly visible fast buzz-like flashes - Hard seat post mount and seat stay mount securely attaches onto seat posts and seat stays - Light mode memory saves the mode you're in before the light is turned off - Durable and weighs only 60 grams - IP64 water-resistant for use in all weather conditions - USB rechargeable with 2 to 200 hours of run time and 3 hours fast charging - Low battery indicator alerts you when a charge is needed Patent pending. *Features and specs are subject to change without notice.
$136.40
Blaze MK3 With ReAKT And Peloton is a premium rear light that has all the versatility of various rear light technologies merged with a hefty run time. - Ambient Kinetic Technology (ReAKT) enables the light to automatically flare under braking and when entering areas of higher ambient light to create a contrast in brightness. Peloton mode dims rear light when a following rider's front light is detected - Optimized Mode Selector provides multiple programs for a choice of run times and modes so you can find the right one for your ride - DayBright flash pattern and side illumination for 360° visibility makes this an attractive package
$29.99
The 65R is the Superflash tail light on steroids. The Cree XBD LED delivers 65 lumens of brilliance and 220° of visibility to get you noticed day and night. - Cree XBD and high output surface mounted LEDs provide 65 lumen output with high, low, Courtesy and Superflash modes - FL1 Tested - Run times: 7 hrs (high – 30 lm), 12 hrs (low – 7 lm), 5.5 hrs (Courtesy - 13-40 lm) and up to 11.5 hrs (Superflash - 65 lm) - Provides 220° of visibility - Highly visible, even in daylight - Dust & water resistance rated to IP65 standard - 550 mAh lithium polymer battery charges in 2.5 hours with micro USB cable (included) - Smart Charging Technology with built-in low battery indicator - Includes Quick Strap seat post mount - 52 grams
$40.00
The Gravity Tail Light has a built-in accelerometer that detects deceleration or swerving and automatically changes to a super-bright, solid beam to warn following traffic. - Automatic accelerometer brake light function shines 100 lumens bright - 2 Modes (runtime): Solid - 20 lumens (12 hours), Flash - 80 lumens (30 hours) - USB-rechargeable li-polymer battery - Includes brackets for seatpost and seatstay mounting
$50.00
When you absolutely, positively need to be seen, day or night, rain or shine, trust CatEye's brightest rear safety light. The ViZ450 features 5 LEDs, 300-degree visibility, OptiCube lens technology, and makes sure you stand out with the power of Daytime Hyperflash mode. - 5 LEDs (450 lm) - Highly visible during daytime - 300 degree visibility - Long rear beam projection - OptiCube lens technology - Lithium-ion rechargeable battery - USB rechargeable (Micro-USB cable included) - Low battery indicator - 4 modes *Charging time: 3.5h - Mode memory function - Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.) - New seat post bracket SP-15 which fits contemporary (kammtail) aero seatpost - Snap System Run time: - Constant (40 lumens):5 hrs - Flashing (40 lumens):65 hrs - Group Ride (130 lumens):10 hrs - Daytime Hyperflash (450 lumens):14 hrs
$63.00
There's no excuse to ride in the dark without lights when Knog's Gekko is so convenient, powerful and cool! This little, water-resistant, silicone-bodied light can be clipped just about anywhere. Plus, the Gekko boasts a super-bright LED with five flashing modes, a steady mode, and run times of up 220 hours!
$29.95
Engineered to stand out day and night, the Hotshot SL™ 50 delivers nearly twice the output of the original Hotshot™ with powerful 50 lumen flashes. Exclusive 2 button design lets you fully adjust the tempo of each flash mode to maximize motorist awareness. Every bit the road cyclist’s tail light, its power combines with an impressive 200 hours of run time to give you a large presence anytime and anywhere. (patent pending) - Powerful 50 lumens flashing - Built-in 24/7 Safety Technology® gives you a powerful selection of 6 day and night modes (Steady - Zoom - SteadyPulse® - Triple Flash - DayLightning® - Random Flash) - Freely adjust the brightness of Steady mode and the flash tempo of the flashing modes with the simple 2 button interface (patent pending) - SteadyPulse® mode features a steady beam to help motorists gauge their distance while overlapping pulses keep them alert at night - DayLightning® mode emits lightning-like flashes to highlight your presence in the brightest of daytime hours - Zoom mode signals those around you with gentle changes in brightness - USB rechargeable internal battery - Low battery indicator - Light mode memory saves the mode you're in before the light is turned off - Compact, water-resistant design weighs only 55 grams - Seat post mount included - 2:30 ~ 200 hr run time Patent pending. *Features and specs are subject to change without notice.
Portland Design Works' Gravity Tail Light has a built-in accelerometer that detects deceleration or swerving and automatically changes to a super bright, solid beam to warn following traffic. To allow the accelerometer to calibrate, always install the Gravity on your bike before powering it on. Hold the power button down for 1 second to turn the light on or off. Then, keep your bike still for 1 second after pressing the power button to complete the calibration. The Gravity Tail Light has a redesigned mount that works with the included seatpost and seatstay brackets. - Automatic accelerometer brake light function shines 100 lumens bright - 2 Modes (runtime): Solid - 20 lumens (12 hours), Flash - 80 lumens (30 hours) - USB rechargeable li-polymer battery - Weatherproof exterior for all season riding - Includes brackets for seatpost and seatstay mounting - Mounts vertically or horizontally - Includes Micro USB recharging cord - Weight: 1.9 oz
$37.00
Packed in a sleek profile that complements your road bike, the Hotrod 50™ unleashes a powerful 50 lumens of radiant wide coverage. Its 6 attention grabbing modes keep motorists aware of your presence any time you’re on the road. Its Versatite™ flexible mount lets you attach the Hotrod 50™ tail light to most seat posts and seat stays, including aero styles. Performance - Powerful 50 lumens flashing - Low profile, compact size - USB rechargeable Li-ion battery - Low battery indicator - Water-resistant design - 1:30 ~ 100 hr run time - System Weight: 29g Technology and Safety - 6 modes: High Flash - SteadyPulse® - Zoom - Group - Low Flash - High Steady - SteadyPulse's steady beam helps motorists better gauge their distance from you while the overlapping pulses keep them alert of your presence - Sturdy and flexible Versatite™ mount attaches to most seat posts and seat stays, including aero styles Patent pending. *Features and specs are subject to change without notice.
$31.99
The Stick Drive is an incredibly thin and lightweight rear bike light equipped with eight super bright LED emitters. Its minimalistic design is optimized for versatility and ease of use. A simple o-ring securely straps it to a bicycle seatpost, and an innovative magnetic attachment separates the light from the mount for quick charging accessibility. It’s equipped with an integrated USB stick for cable-free charging, providing up to an impressive 23 hours of runtime. The Wide Angle Optics lens creates up to 270° of visibility, and the light outputs up to 30 lumens—this includes a disruptive Daytime Flash feature among its seven modes. With its narrow design and compact mount, the Stick Drive is the perfect taillight for maintaining aerodynamics and also attaching to seatposts with minimal space—like a dropper post. Designed and produced in-house, the Stick Drive is engineered for long-lasting durability and built to be highly water resistant. - Max 30 lumens - USB Rechargeable and magnetic clip-on mount - Wide angle optics with 270° visibility for maximum safety - Aero and round seatpost compatible - Slim design, lightweight and durable - Magnetic clip-in mount - IPX7 water resistant
$24.99
To further rider safety and visibility, the CherryBomb 100 employs a custom-made, built-in reflector that allows the rider to be night time visible even when the taillight is in the off position. Clip and bike mounts are included for flexible mounting options. Features - Lumen Output: 100 - 4 Modes with a Run Time up to 136h - 2 x AAA Alkaline Battery Powered - Weight: 82g - Battery: 2 x AAA Alkaline - Highly Visible up to 1 Mile - 100 Lumen Daylight Visible taillight - Water / Dust Resistant IP64 Rated Run Time - Fast Flash—96:00h - Pulse Flash—136:00h - Steady High—72:00h - Steady Low—127:00h
$29.99
With a dazzlingly bright 28 LED PB Power Array and three modes, this USB rechargeable light is like a Scarlet Begonia for the back of your bike. For added safety, it has a CPSC certified reflector in the lens to keep you visible when the light is off. Versatile mounting options allow you to attach it to your seat post or rear rack with the included brackets. - PB 28 LED power array and CPSC certified reflector provides steady, Courtesy & Superflash modes - FL1 Tested - Run times: 5 hrs (steady – 20 lm), 9 hrs (Courtesy – 6-18 lm) and up to 30 hrs (Superflash - 20 lm) - Provide 160-degrees of visibility - Highly visible, even in daylight - Dust and water resistance rated to IP65 standard - 700 mAh lithium polymer battery charges in 2.5 hours with micro USB cable (included) - Includes rear rack and seat post mounts plus clip mount for multiple mounting options - 65 grams
$49.95
The most powerful line of single LED tail lights just got even brighter. Sporting an aggressive design and powerful output, the Hotshot Pro™ 200 is engineered from the ground up to stand out in the brightest of daytime and at night with intense 200 lumen flashes. Exclusive 2 button design lets you fully adjust the tempo of each flash mode to maximize motorist awareness. It even senses day and night, automatically adjusting the brightness of the flashing modes. Every bit the road cyclist’s tail light, its extra-wide beam lens maximizes your presence from afar, and its new low-profile flexible mount makes it easy to use on standard and aero seat posts. Get the most out of your ride with up to 210 hours of run time. (patent pending) - Powerful and efficient single LED blasts 200 lumen flashes (120 lm steady) - Engineered to make you stand out in broad daylight and at night - Built-in 24/7 Safety Technology® gives you a powerful selection of 6 day and night modes (Steady - Zoom - SteadyPulse® - Triple Flash - DayLightning® - Random Flash) - Freely adjust the flash tempo of the flashing modes and the brightness of Steady mode with the simple 2 button interface (patent pending) - All flashing modes feature Adaptive Flash™ that sense day and night, automatically adjusting to the optimal brightness - SteadyPulse® mode features a steady beam to help motorists gauge their distance while overlapping pulses keeps them alert at night - DayLightning® mode emits lightning-like flashes to highlight your presence in the brightest of daytime hours - Zoom mode signals those around you with gentle changes in brightness - Enhanced Cycling Optics™ expands your presence with an extra-wide and long-range beam - USB rechargeable - Low battery indicator - Light mode memory saves the mode you're in before the light is turned off - Compact, water-resistant design weighs only 54 grams - Flexible seat post mount fits most standard and aero seat posts - 2 ~ 210 hours of run time Patent pending. *Features and specs are subject to change without notice.
$54.99
Emax+ 150 is NiteRider's first taillight specifically made for electric bikes. It comes with a power line that's pre-wired for connection to the eBike's battery. Power line cable measures approximately 52" in length. Taillight powers ON with ignition/ power switch. Features six modes-Steady ON and varying flashes-with Built-in Mode Memory (remembers last setting). FEATURES - Lumen Output: 150 - 6 Modes - Hardwired, Voltage 6 to 80 Volts DC - Water / Dust Resistant IP64 Rated - Weight: 75 grams - Fits 22mm-34.9mm seat posts - Includes a pre-wired Emax+ 150 Taillight, Seat Post Clamp Mount, Rubber Mounting Shims, and Rack Mount LIGHT MODES 1) Fast Flash 2) Slow Flash 3) Disco Flash 4) Pulse Flash 5) High Steady 6) Low Steady NiteRider recommends this taillight be installed by an authorized e-bike service and repair shop.