<!--ProdInc[300300820]/Mall:[backcountry_US]-->With max 350 led lumens and improved eye-catching warning flashing mode, TR350 offers great daytime visibility for riders. The light comes with an intelligent brake sensor for urban riding and auto on-off function for convenient operation. There are also 5 other modes, 3 constant and 2 flashing modes, for various riding environments. It is easy to use with the USB-C charging port and compatible with round and aero seatposts. <h3>Tech Specs</h3> Bulbs : 3 red LEDs Power Source : USB-C charging port Batteries Included : 1600mAh/3.7V rechargeable Li-ion battery Modes : high, mid, low, warning flashing, rapid flashing, slow flashing Lumens : [high] 50, [mid] 20, [low] 10, [warning flashing] 350, [rapid flashing] 100, [slow flashing] 100 Burn Time : [high] 7.5 hours, [mid] 17 hours, [low] 39 hours, [warning flashing] 23 hours, [rapid flashing] 21 hours, [slow flashing] 10 hours Mount : seat post (compatible with round and aero) Waterproof : IPX4 Dimensions : 41 x 33 x 62mm Claimed Weight : 77g Manufacturer Warranty : 2 years, [accessories, spare parts] 1 year Activity : bike