The 130/100-watt H4 halogen bulb pumps out 18 million candlepower to turn night into day at the flip of a switch. Two power levels enable you to conserve battery life or light up the night. Adjustable swivel stands keep the beam focused where you need it. Durable rubberized construction holds up to the harshest elements. Two sealed 6-volt lead-acid batteries boast impressive run time and take a full charge in 20 hours through the AC/DC adapter or 12-volt car plug adapter.