{"product_id":"g-keni-smart-brake-sensing-bike-tail-light","title":"G Keni Smart Brake Sensing Bike Tail Light 1 Pack (Aluminum Alloy Shell) USB-C Rechargeable IPX6 Waterproof, 400mAh","description":"\u003cp\u003e\u003cstrong\u003eThe G Keni Smart Brake Sensing Bike Tail Light is a USB-C rechargeable, IPX6 waterproof rear light that automatically brightens when you brake to increase visibility for riders and drivers behind you.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact rear bike light combines a motion-activated sensor, a brake-sensing flash boost, and multiple light modes so cyclists can ride with greater confidence after dark or in poor light. Designed with an aluminum alloy body and a 400mAh battery, it balances durability, runtime, and fast charging for daily commuting, road, and mountain use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the brake sensing feature improve safety when cycling?\u003c\/h3\u003e\n\u003cp\u003eThe tail light detects deceleration and instantly switches to an ultra-bright alert mode for about five seconds, making your braking more visible to traffic and following cyclists. That temporary surge in brightness helps create a clearer signal of your intent than steady lights alone.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic ultra-bright boost on braking for 5 seconds\u003c\/li\u003e\n  \u003cli\u003eSensors calibrated for typical bike deceleration patterns\u003c\/li\u003e\n  \u003cli\u003eWorks without button presses—reactive to motion changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat battery life and charging options can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe built-in 400mAh battery supports long runtimes depending on the selected brightness and mode—up to around 50 hours on the lowest settings. Recharge quickly via the USB-C port and monitor remaining power using the four-level battery indicator.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUSB-C fast charging for convenient top-ups\u003c\/li\u003e\n  \u003cli\u003eUp to 50 hours on low-power settings (mode-dependent)\u003c\/li\u003e\n  \u003cli\u003e4-level battery indicator visible on the unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich light modes are available and how do sensors manage power?\u003c\/h3\u003e\n\u003cp\u003eChoose from Flash, Breathing, Fast Flash, and Steady On to match road, city, or trail conditions. Built-in motion and ambient-light sensors automatically turn the light off after inactivity and reactivate it when movement resumes to save battery life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour selectable modes to suit different visibility needs\u003c\/li\u003e\n  \u003cli\u003eAuto-off when stationary; auto-on when movement detected\u003c\/li\u003e\n  \u003cli\u003eAmbient light sensor helps prevent glare in bright settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the light built to withstand weather and rough riding?\u003c\/h3\u003e\n\u003cp\u003eThe housing is crafted from aluminum alloy and rated IPX6 for water resistance against heavy rain and splashes, making it suitable for commuter and off-road conditions. The rugged construction stands up to bumps and everyday wear while keeping electronics protected.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable aluminum alloy casing for impact resistance\u003c\/li\u003e\n  \u003cli\u003eIPX6 waterproof rating for rain and wet-road use\u003c\/li\u003e\n  \u003cli\u003eCompact profile that mounts securely to seatposts and racks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The G Keni Smart Brake Sensing Bike Tail Light is ideal for daily commuters, road cyclists, and weekend mountain bikers who want a low-maintenance safety upgrade. It fits riders who value automatic, sensor-driven visibility, long battery life, and a weatherproof build without adding bulk or complicated controls.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the battery last on a single charge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Runtime varies by mode; expect up to about 50 hours on the lowest setting and shorter durations on brighter modes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the brake sensing work on mountain bike trails?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—sensors detect deceleration on trails and roads, triggering the five-second ultra-bright brake alert.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"G Keni","offers":[{"title":"Default Title","offer_id":48021228716193,"sku":"B07W4PGHK7","price":76.1,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/g-keni-front-view-tail-light.jpg?v=1791309106","url":"https:\/\/canadiansporting.ca\/products\/g-keni-smart-brake-sensing-bike-tail-light","provider":"Canadian Sporting","version":"1.0","type":"link"}