1.Reminder: please don't unscrew the bulb during installation. It is fixed to be waterproof. Only for 12V-30V Single LED 1.5W with 6 LED insides ,total 9W super brightness 2. Bronze housing materials, 100% anti-corrosion,Waterproof : IP68,must be used inside water, can't be used outside water 3. Standard “1/2 NPT thread type, connected with 2 meters cable 4. Connected with waterproof connector in order to easy installation, no drilling hole are needed, just screw it into the holes on your boat 5. Reminder: please don't unscrew the bulb during installation. It is fixed to be waterproof. Reminder: please don't unscrew the bulb during installation. It is fixed to be waterproof. Keep the wire straight when installing it to avoid short circuit. Product description Remark: Lights are for underwater use only; do not operate it out of water Specification: 1. Single LED 1.5W with 6 LED insides ,total 9W super brightness 2. Bronze housing materials, 100% anti-corrosion 3. Standard “1/2 NPT thread type, connected with 2 meters cable 4. Connected with waterproof connector in order to easy installation, no drilling hole are needed, just screw it into the holes on your boat 5. Waterproof : IP68 6. Connect to 12-24V battery or power sources only 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 a 12-24V 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 lead to the negative (-) 5. Switch on the light to check if it works well Packing include: 1* Drain Plug light 1*protective tube