Product Review

The Sentine 40 has a powerful 2 watt LED, 5 modes, is USB rechargeable and has a brand new safety feature, Laser Lanes! The Laser Lanes mode is designed to project ultra bright laser lines on the ground, giving the rider their own virtual lane.Not only does the NiteRider Sentinel 40 tail light deliver an impressively bright 40 lumens of LED illumination, but this light features the ingenious Laser Lanes feature. The Sentinel 40 projects laser lines onto the ground on either side of the bicycle which creates a virtual bike lane and suggests a safe passing distance for motorists. There's also plenty of versatility in placement of the tail light with a quick release bracket for seat post mounting plus a universal clip for attachment to clothing or a bag.Internal Li-Po rechargeable battery.Charge time: 4 hours (via USB cable).Low battery indicator.Mounts to seatpost (via quick release bracket) or clothing/bags via universal clip.Weight: 73 grams.