Dream Lighting 12V LED Luxury Crystal Roof Down Light RV Caravan Travel Trailer Boat Interior Square Ceiling Lighting Fixture-with Switch, Warm White Beautiful decorative light for 12volt vehicle interior dome light applications: RV, trailer, motorhome, boat, yacht, marine, etc. It is a combination of illumination and decoration. Luxury frosted PMMC acrylic crystal panel is designed to optimize light distribution. The light output is quite soft and uniform. Just a click on the button switch and you can enjoy the illumination. LED is energy saving. The 120 Flat angle light illumination provides additional ambient illumination, which is perfect for utilizing the energy efficient properties for interior use. Highly efficient heat dissipation for stability and durability. Shockproof and surface mount design for simple installation in a moving vehicle. Wiring: black wire for positive, white wire for negative/ground.