12V LED Spotlight: These bulbs operate on 12V AC/DC. Do not install the MR16 GU5.3 12V LED bulb directly into a standard household 100V or 220V lighting system, as this may cause a short circuit or damage the bulb. [Energy Saving]: 12V GU5.3 3W LED, 60x2835 SMD LED, 300lm, 6000K cool white light, 120 degree light-emitting angle. These low voltage bulbs are ideal replacements for GU5.3 30W halogen lamps, saving over 85% in energy consumption. Safety and environmental protection: LED 50mm MR16 12V. This bulb is not dimmable, please do not use dimmers as they may cause flickering or noise. Contains no lead or mercury. No UV or IR. No noise or flicker. Ideal lighting for motorhomes/caravans. Easy to Install: MR16 GU5.3 12V LED spotlight, small size (50x46mm), easy to install, a perfect replacement for MR16 GU5 halogen bulb. 3 traditions. Instant lighting without waiting for the bulb to heat up. The average life is 20,000 hours. Application: The AC/DC 12V GU5.3 3W LED spotlight is ideal for accent lighting or indirect lighting. Suitable for bathroom, living room, closet, hall, hallway, extractor hood, extractor hood, showcase, library, office, cinema, etc. Interior lighting for caravans/RVs, photovoltaic systems.