Cygolite Streak 280 Lumen Headlight/Hotshot SL 2W Tail Light USB Rechargeable Bicycle Light Set Super bright 3 watt headlight with 280 lumens for distant throw; Ultra bright 2 watt red LED tail light for intense visibility Internal rechargeable batteries saves cost of replacing batteries, headlight lasts up to 10 hrs. and tail light last up to 200 hrs. on a single charge Headlight 5 lighting modes: Medium &get; High &gt;Low &get; Steady Pulse &get; Daylighting Tail Light: Adjustable flash speeds to maximize visibility; 3 Flash Modes: Steady &get; Triple &get; Single Includes Streak 280 headlight, Hotshot SL 2W tail light, USB charging cable, seatpost mount and Lock-title handlebar mount