This is a sealed, completely waterproof red light with manual O/NOff controls… it was requested by customers to have a unit aboard their vessel that they could use at night underway in areas that are hard to run wiring… they can also be used inside, but it is important to put them in a very exposed location as they require Solar charging. I personally have one mounted just below the hatch inside of my boat that we use for convenience underway at night and it is a very nice addition to the space. If you would like to use them in a location that is not very exposed to sun I would recommend mounting with the Velcro so that it can be placed outside during daylight hours for proper charging.

• On/off Switch Operation
• 3.2v/1000mAh Lithium Ion Phosphate Battery
• 2.5v/0.25w Mono Crystalline Solar Panel

Dimensions

• Width/Depth: 4 13/16"
• Height: 1"
• Weight: 10oz
• Mounting Holes: 3 13/16"