1. This light is designed to replace the drain plug on the boat and attracting fishes in seawater. 2. Stainless steel housing materials, 100% anti-corrosion 3. Standard 1/2inch NPT thread type, connected with 1.25 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 Name:boat underwater light Voltage:12v DC LED's:9 leds Power:total 12W IP Rating: IP68 waterproof Thread: 1/2 NPT Brightness:1200LM Size:cord length 120-125cm Compatible with:Boats/yachts 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. Light Color:Blue Light Colour:As Shown Material:metal Package Contents: 1 * boat underwater light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.