3 18W WF-GD0100 LED Underwater light LED swimming pool light, LED Undersea Lamp, LED waterproof lighting 1. Materials: Lamp-body and end-housing: high quality aluminum alloy 2. Lighting face: 4MMsafe-toughened glass 3. Circuit board: import resin double sided board 4. LED: element 144pcs/Meter RGB(its optional item) 5. Heat eliminating board: aluminum alloy(if the lamp is applying to the outdoor, then the circuit have to be encapsulated by the resin.) 6. End-housing waterproof ring: silicon rubber 7. Screw: all made from stainless-steel 8. Electric wire: all made from heat-resistance wire 9. Potential applications: 10. Its applying to the groove of the building out-wall, it can show out the outline of the building and realize huge screen function ,the led light ,led underwater light fit for water pool.