The NiteRider Sentinel 250 incorporates three powerful LEDs to produce a powerful daylight visible, 250 lumens7 modes including 2 brightness settings, 2 flash, and 3 settings with projected laser lanesCustom reflector provides maximum daylight visibilityEasy to use rubber strap attachment with quick release tabBlack7RearRubber StrapUSB250UPC/EAN/GTIN: 702699050891