Dashlite Super Nova LED Rechargeable Flashlight for the Car Recharges in 12V Auto Plug as you drive. Provides up to 4 hours light on a single charge. L.E.D Flashlight cannot over charge and will not drain Auto Battery. L.E.D. Flashlight is designed to continually receive a charge, even when fully charged. The RED charging light will not switch off when fully charged. Shines 25ft light for up to 2 hours, 15ft for 4 hours, 10 ft for 6 hours.