The Lunasea Portable Light Bar, which runs on a rechargeable 4 amp lithium-ion battery, is suitable for lighting marine heads, cuddy cabins or any onboard area that doesn’t have power or is under-illuminated. Sturdy aluminum construction ensures durability and long life in the rugged marine environment. You can simply set the light bar down wherever light is needed, or mount it easily using the included magnetic holders and hardware. An easy-to-access built-in power switch makes it a candidate for semi-permanent installation. Once charged, the light bar can also be used to power cellphones and other USB devices. Just plug your device into the light bar via the USB port.