The Laser Drive rear light is a compact, high visibility safety light with four ultra bright LEDs. Laser mode beams two safety strips on the ground. Light and durable co-molded lens/body construction. Waterproof. Unique aero and round post compatible design. The Lezyne Laser Drive rear light provides up to 40 lumens and three output/flash modes. Side Visibility for 180 degrees of visibility. Convenient Micro-USB rechargeable design. Features: Integrated lasers to show a riders path for increased safety Usb rechargeable 2 laser lanes 2 solid mode 5 flash modes Laser only mode Co-mold body Silicone rubber mounting strap Aero post compatible Built in charge indication Concealed usb port SPECIFICATION: MAX LUMENS: 40