GU4 12V-24V LED: Please do not install the MR11 GU4 12V-24V LED bulb in standard 100V-240V lighting, which will cause a short circuit and damage the bulb. If the voltage of the bulb is AC 100-240V, a transformer is needed. Using the Transformer: Please make sure the transformer is compatible with LED bulbs. An LED transformer is recommended. Conventional electronic transformers are prone to flickering bulbs. Energy Saving: GU4 MR11 12V 4W cool white with 24 SMD LEDs, 350LM with 120 degree light beam angle. MR11 12V 4W equivalent to MR11 35W halogen lamp, reduce power consumption more than 85 percent . GU4 LED spotlight is ideal for the bathroom. 35mm MR11 LED: MR11 12V LED GU4 base, small size 35x35mm, easy to install. NOTE: Please check size compatibility in advance. 30,000 hours of life. No lead or mercury. No noise or flicker. GU4 LED spotlight 12V cool white for kitchen range hood. Application: GU4 LED spotlight 4W 12V-24V is ideal for garden lighting, display lighting and ceiling lighting . Used in kitchen cabinet, bathroom, showcase, dining room, living room, cabinet, caravan, motorhome, cabin, balcony, hallway, hallway, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.