This is blue LED drain plug light. This light is made of a thick and rugged brass 1/2" NPT plug. The back side of the plus is filled with high temperature epoxy. The outer clear lens is crystal clear UV resistant PC. If you need to drain your boat, simply unscrew the plug and let it lay to the side. This light is designed with water cooling System, it must be installed under waterline and used only when submerged. Material: Brass. Housing Color: Brass Lacquered. LED Color: Blue. LED: 2 pcs. LED Beam Angle: 120. Water Proof: IP 68. Working Voltage: 12 V Wattage: 0.4 W. Effective Lumen: 3. Diameter of thread: 1/2"-14. Length of cable: 22". Item# P00306BU.