1.A low profile ceiling light fixture for 12volt interior illumination, RV, caravan, boat cabin, kitchen, cabinet, hallway, etc. and high brightness up to 300 lumens, 3500K, bright enough to light up large area, perfect for spacious vehicles. quality LEDs deliver reliable performance and save energy at the same time. base has efficient heat dissipation and ensures stable performance. built-in switch, you can use a master switch to control it. with spring clips, the light is easy to not need other mounting screws. mount installation. Cutout: 2.7inch. Wiring: black wire for positive and white wire for negative/ground.