600 lumen output Run time: 1:15 to 80h Daytime Running Lights (DRL) for use all day Micro USB rechargeable Exclusive 24/7 Safety Technology™ provides added safety through visually enhancing day and night modes 8 lighting modes: Night modes: High – Medium - Low Low battery indicator for power awareness Side light ports highlight your presence SteadyPulse™ mode alerts motorists with attention-grabbing pulses while constantly lighting your way at night DayLightning™ mode's lightning-like flashes makes your presence known in broad daylight Enhanced Cycling Optics™ provide extra wide and long range visibility Light mode memory recalls last mode used Sleek low profile design Water resistant design for all riding conditions VersatiteTM flexible mount conveniently attaches to handlebars including aero bars Lightweight 95 g