1. This light is designed to replace the drain plug on and attracting fishes in seawater.2. Stainless steel housing materials, 100% anti-3. Standard 1/2inch NPT thread type, connected with 1.25 meters cable4. Connected with waterproof connector in order to easy installation, no drilling hole are needed, just screw it into the holes on your boatName:boat underwater lightVoltage:12v DCLEDs:9 ledsPower:total 12WIP Rating: IP68 waterproofThread: 1/2 NPTBrightness:1200LMSize:cord length 120-125cmCompatible with:Boats/yachtsInstallation instruction:1. Loosen the drain light2. 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 NPT3. Connecting the light wire to an 8-28V on/off switch. Plug in the waterproof connector4. 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:Green LightColour:As ShownMaterial:metalPackage Contents:1 * boat underwater lightOnly 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.