XtremepowerUS Portable COB Type Super Bright LED Work Light Rechargeable Flood Lights Lamp (20 Watts) Rechargeable: built-in 7.4V rechargeable Li-ion battery with over-charging protection Dual adapter for charging: AC universal power supply and automotive charger Wide use: indoor and outdoor use, metal rack, metal shell, lightweight, cordless, portable and rechargeable Working Time: 3-4 Hours Charging Time: 4-5 Hours