Kryptonite Street F-300 Light Front BlackFront Light Lumen output at high steady: 300 Total run time at high steady: 1h30 Compact, sleek design Robust safety features including daytime and nighttime 6 pulse modes Side illumination ports allow cyclists to be seen when riding across traffic lanes Fully USB rechargeable Memory function allows light to turn on at the last mode that was used TECH SPECS Battery Type Li Ion Light Type LED Lumen Range 201 400 Position Front Rechargeable Yes Bracket