27W 1800 Lumens Aluminum Alloy IP68 Waterproof Rate 9 LED Boat Drain Plug Light, 2 Colors Remark: Lights are for underwater use only; do not operate it out of water Single LED 3W with 9 LED insides, total 27W super brightness. Titanic Aluminum Alloy housing materials 100% anti-corrosion Easily replace the existing 1/2" drain plug on the boat, no need to drill hole on boat.Note: please do not tighten the screws too hard in order to not damage the wires inside and result in short out. Simply screw into the 1/2" threaded entry and connect wires to a switch.Quick Disconnection and remove with plug in& out waterproof connector, connected with 2 meters cable.Connected with waterproof connector in order to easy installation, no drilling hole are needed, just screw it into the holes on your boat Installation instruction: 1.Loosen the drain light 2.Run the cable leads thru the garboard drain opening and screw the drain plug light assembly into the existing garboard fitting .The garboard fitting is 1/2 NPT 3.Connecting the light wire to an 8-28V on/off switch. Plug in the waterproof connector 4.Attach the red lead the positive(+) with the included in line 3 AMP assembly fuse and the black leadto the negative (-) 5.Switch on the light to check if it works well Packing includes: 1* Drain Plug light 1* protective tube PS: In case that you did not receive manual, please contact the customer service and they will be pleased to help you out.cell-phone-chargers cell-phone-chargers cell-phone-chargers