Underwater boat transom LED light. 27 watts (uses 9 3 watt LEDs). Rated waterproof IP68. Perfect for boats, yachts, fishing boats, cruse liners, and other marine vehicles that are in need of underwater lighting. Made from top quality stainless steel. Dimensions: 4.69" diameter by 0.96" height. Operates on 10-30VDC. Available in White, Red 630nm, Green 520nm, Blue 460nm, and Yellow 590nm. Lumen output for each color; Red (220-270 lumens), Green (380-430 lumens), Blue (60-90 lumens), Yellow (220-270 lumens), White (420-500 lumens).