17 Volt Light Package 17-volt 4 amp-hour nickel metal hydride (nimh) battery. Weighs less than 2.0 pounds. Heavy duty 6-position rotary on-off switch. Will burn approximately 9 hours continuously on the low side of the bulb, about 1.5 hours on the high side. The charger is 300 mAH. Package includes everything seen plus bulb,a spare bulb and a 3-year warranty. Price is $210.00.