This energy efficient LED MR11 spotlight light bulb is a high-quality, professional replacement for outdated 35W halogen spotlights, offering the same brightness, but using only a fraction of the energy. The light bulb emits a bright 345 lumens of warm white light, with a narrow 36Â beam angle that's perfect for highlighting products in retail displays, or in galleries and other display lighting. The light bulb's long 15,000 hour lifespan means that once installed, it will not need replacing again for years. It also retrofits to existing light fixtures, so installing it is simply a case of swapping out the old light bulb for the new. Please note, as this is a low voltage light bulb, it will need to be fitted with a compatible driver or transformer when installed on mains circuits. Non-dimmable. This LED MR11 spotlight lamp is fitted with a low voltage 12V GU4 2-pin (4mm apart) base. Please note that theis light bulb will operate with most AC and DC 12V transformers. However, some 12V transformers may have a minimum required load which may not be met when installing low powered LEDs: these drivers may cause flickering or the LEDs not to function correctly. If this issue arises it may be necessary to source a suitable LED driver. Please refer to the manufacturers website for compatibility.