12V LED spotlight: GU5.3 LED 12V AC/DC. Do not install the GU5.3 12V LED bulbs directly into the standard AC 100-240V household lighting system, otherwise it may cause a short circuit or damage the bulb. It is recommended to use LED transformers. Energy saving: 12V GU5.3 5W cool white 6000k LED with 60 SMD LEDs, 500LM with 120 degree light angle. GU5.3 5W LED is an ideal alternative to GU5.3 35W 50W halogen lamp, save power consumption more than 85%. 50mm MR16: MR16 GU5.3 12V LED spotlight , size 50x46mm, easy to install. Please check if the size is compatible before purchasing, thank you. Instant lighting, there is no delay. The average life is 30,000 hours. Ideal for kitchen ceiling. Stable Quality: GU5.3 12V cool white LED for bathroom. This GU5.3 12V spot is not dimmable, Not compatible with the dimmer. No lead or mercury. No noise or flicker. Ideal lighting for motorhome/caravan. Applications: Ideal for accent or indirect lighting. Used for bathroom, living room, cabinet, foyer, hallway, kitchen, showcase, library, office, etc.