CatEye Uno Headlight/Rapid 3 Tail Light Combo HL-EL010/TL-LD630 Head Light :400 candle power Head Light : Flashing and constant modes 60 hours run time in flashing mode 15 hours run time in constant mode Battey type: Head Lgiht AAx 1(included),Tail Light:AA x 1 (included) Tail Light: 3 different light modes with runtime of Rapid(20hr),Flashing(80hr),Constant(3hr) Tail light:One High power chip LED + two 5mm LEDs