【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 bulb voltage is 100-240V, a transformer is required. 【Using the Transformer】: Please ensure the transformer is compatible with the LED bulb. Incompatibility will cause the LED bulbs to flicker. If a halogen transformer is used, all connected bulbs must meet the transformer's minimum output power. 【Energy saving】: GU4 MR11 12V 3W warm white with 24 SMD LEDs, 350LM with a light diffusion angle of 120 degrees. GU4 12V LED 3W equivalent to a 30W halogen bulb, reduce energy consumption more than 85%. 12V LED spotlight for camping. 【35mm MR11 LED】MR11 12V LED GU4 base, small size Ø35*35mm, easy to install. NOTE: Please check size compatibility in advance. 50,000 hours lifespan. No lead or mercury. No noise or flickering. 12V GU4 LED recessed spotlight for caravan. 【Application】: Ideal for garden lighting, exhibition lighting and