1. Easily replace the exsiting 1/2" drain plug on the boat, no need to drill holes on boat; 2. Simply screw into the 1/2" threaded entry and connect wires to a switch; 3. Quick Disconnect and remove with plug in& out waterproof connector(optional); 4. Install for both small or large boat with DC8-28V built-in driver; 5. Enhance the joy of voyage with brightness that high up to 800lm in cool white and 150lm in blue; 6. Be free of water leak issue with its IP68 waterproof rating; 7. Have almost all colors as option, white, red, yellow, green, blue.