【AC/DC 12V】Please note that GU5.3 LED bulbs work on 12V voltage, not 100V or 220V household voltage, otherwise it will damage the bulb. 【LED Transformer】A LED transformer is recommended. If you use a halogen transformer, please make sure the bulb's power reaches the minimum power of the transformer, otherwise it may flicker. 【Non-Dimmable】This GU5.3 LED bulb is not dimmable and is not compatible with dimmers. High color rendering, 120 beam angle, uniform light, no flicker, relieve eye fatigue. 【Φ50x46MM】MR16 GU5.3 5W LED bulb instead of 50w halogen bulb, long lifespan, 90% energy saving. GU5.3 base, 50MM diameter, easy to install, reduce bulb replacement frequency, save time and money. 【Application】MR16 GU5.3 LED bulb is ideal for recessed lighting, track lighting and landscape lighting. Commonly used in living room, showroom, corridor, showcase and other indoor lighting.