Waterproof Bilge Pump Switch set in to a sturdy 1.5mm thick aluminium plate. The switch features an LED indicator light, 15A fuse, and can be set to automatic or manual. The manual override setting has a spring return, so must be held in postion to work - the desired setup for most bilge pump applications as it prevents the pump from running dry without the operator knowing. • Voltage: 12 VDC • UL approved waterproof switch with LED indication • IP65 Waterproof • Size 88.9mm x 50.7mm • Orientation: Vertical/Portrait