Serfas CP-1000 Combo Headlight features 6 Nichea White LEDs, optical lens, and easy mount Taillight has 5 LEDs, 360 degree roatating feature, and water resistant Batteries inlcuded Burn times - Headlight: Steady = 30 hours, Flash = 60 hours Taillight: Steady = 70 hours, Flash = 120 hours Easy "no tool" installation