Specification: Brand XANESModel STL11 Product Bike Tail Light Lumen 30LMMaterial ABS+PC4 Modes Marquee (Lights on in turn), All Bright, Slow, Strobe Distance 150m Duration 18h Battery 400m Ah Li-ion Battery Waterproof IP55 Size 3.4 x 4 x 3.35cm / 1.34 x 1.57 x 1.32inch Color Green, Red, Black
Features: Safety cycling distance laser signal facilitates the latter to know the distancebetween the front bike so that to avoid bumping. Safe riding in darkness with 150m visable distance. One button operation for 4 functions. (Onclick to switch flashing frequency;double click to switch flashing modes; long press for 2 sec to on/off laser;long press for 5 sec to on/off the light & turn on reset mode.) With intellectual sensor. Auto on/off according to the different brightness andriding state (move or still). No need to adjust the light by yourself. Convenient & energy saving.IP55 waterproof for riding in rain. Weather resistant. High quality guarantee. Selected components & parts with industrial grade standard.ST micro controller. Bicolor high brightness LED. High-strength ABS material & high transmittance PC.400m Ah Li-ion battery (18 hours long lasting duration). Fine quality bilayer circuit board. Super light with 45g only. Two Flexible dismantle holders suitable for various saddles, seatposts & head tubes. (Saddle installation / Plain seatpost / Aero seatpost / Pivotal seatpost / Integratd seatpost / Micro-adjustable seatpost / suspension seatpost / Dropper seatpost / Interlock seatpost).USB rechargeable.