The Sealite BargeSafe (TM) BL2 is a 2NM soalr-powered barge light designed to meet UL 1104 and COLREG-72 standards. The LED barge light sets a new standard and incorporates a host of innovative features designed to make the unit extremely user-friendly. The world-class LED lens is designed by Sealite and achieves precise intensity and sectoring requirements from a single LED light source. Made from tough, durable polycarbonate and using the latest high intensity LED and a uniquely designed lens, the BargeSafe (TM) 2NM light has an incredibly low power consumption. The light can be installed in minutes, requires no operator intervention and has a permanent ON/OFF switch for easy storage. During daylight hours the solar module will charge the battery and the lantern will automatically begin operation at dusk, once the ambient light threshold drops sufficiently. The sealed battery compartment allows the battery to be replaced after years of service.