3 watts 12 volts 4 pieces. High quality finish - durable - elegant look. Lifespan 50,000 hours. suitable for motorhome, caravan, boat, yacht, kitchen, bathroom, bedroomInstallation dimensions: Mounting hole: min. 58mm, max. 65mm. Diameter 70mm, thickness 12mm.All-aluminum and ultra-thin design: Made of full aluminum, conducive to heat dissipation of the LED chip board. 12mm thickness, lightweight and compact body fits tight places. shock and vibration resistantElectronic data: DC 12V, 3W, 215 Lumen. Color temperature 3200K (warm white), Beam angle: 120, dimmable with PWM dimmerNote: Suitable for motorhome, caravan, boat, kitchen, bathroom, bedroom with DC power supply 12V. You need DC12V power supply to power them for home use(Home power is AC110V-230V. Do not contact AC 12V power supply)