[Super Slim] - Ultra thin, thickness 1.1", lightweight and compact body fits narrow places. Shock and vibration resistant [Full Aluminum] - Made out of full aluminum, keeps radiating heat away from LED chip board so as to increase the lifespan of them [Energy Saving] - LED contributes to energy efficiency. It consumes lower power of your vehicle battery while providing efficient lighting [Recessed Mount] - Recessed mount with spring clips provides neat finish after installation. We sell white and warm light in our store Notes: Lights are powered by DC12V for RV motorhome boat. You need a DC12V power supply to power them for home or RV using. (House power is AC220V) 1. Easy to install, widely used in RVs, boats, hotels, shopping malls, homes and other places. 2. No noise, glare,hight CRI, lifespan up to 50,000 hours. .Hight efficiency constant current power supply,stable performance,compared to the traditional incandescent light bulb energy saving 80% 4.Low fever,no radiation,safe contact.Environmentally-frIendly materials,waste recycling. 5. It is suitable for DC 12-24V, and can also be connected to solar panels. 6. The connection method is more convenient than the traditional method, regardless of positive and negative. Can be connected quickly. 7.This product does not distinguish between positive and negative poles, so it can be quickly connected. Connect as shown.