LEDBoat lights Features: 1), Super-clase high power LED which is encapsulated by high efficiency and latest heat disipation structure. 2), First-class stainless steel(316) or bronzeAB2 shell has excellent corrosion-proof, makes the light to use in sea water freely. 3), High luminous efficiency, life-span reachs 50,000 hours. 4), Built-in or external constant current driver. 5), Overtemperature automatic protection function. When environment temperature is more than 45 degree celsius or the voltage is above 30V, the output current of built-in constant current driver will be shutdown in order to protect the LED without damage, and when environment temperature and voltage is normal, the lamp also work normal. 6), Professional waterproof design and prevent seawater wires. 7), Waterproof(IP68), Shake-proof, Energy-saving, Environment-friendly. 8), Easy to installation. Parameters and other details: 1), Waterproof: IP68 for underwater use only Color Available: W,G,Y,R,B. All lights with 2 meter cable. 2), Paking details: 48pcs/carton for 3W,6W, 9W, 20pcs/carton for 18W,27W,36W, 54W, carton size: 49*34*39cm. 3), Payment terms: T/T and Western union; Delivery time: 7-15days for sample order, 10-20 days for normal order after deposit or payment. 4), We accept OEM order. Product and structure picture: Appalication picture: Other Marine Lights:(Note:The following models should only be used underwater) Other Marine Lights: (The following models can be use in and out of water.)