Dream Lighting LED Ceiling Domelights 4.5" Cool White Pack of 4 A low profile LED light for low voltage (12volt DC) lighting, like interior vehicle, caravan, cargo trailer, campervan, boat, ship, cabin, etc. Mainly functions as ceiling light, dome light, roof light, down light, overhead light and cabinet light. Its cover lens is made of durable fire resistant PC materials, which softens the light output and provides smooth light distribution. We choose aluminum materials for the base plate in that it has excellent heat dissipation for safe use and long diode lifespan. Shockproof design is perfect for uses in a moving vehicle. Twist off design is convenient for surface mount design. All the mounting screws are hidden by the lens cover after installation. No more messy installation.