The WEST MARINE MR11 Vertical Pin Downlight G4 Base LED Premium Bulbuses cutting edge LED chips, drivers and construction offering the highest levels of performance, efficiency, and reliability. This results in dramatically reduced power consumption while having greater light output than the majority of bulbs of its size. It will produce bright flicker free light which will render true and vibrant colors, and reduce eyestrain compared to lower quality LED bulbs. This is achieved using high efficiency chips and drivers which produce more light output per watt of power consumed. This bulb is the ultimate MR11 12VDC led replacement, producing 270 lumens using just 3 watts of power. This is a replacement for a 15-20 watt halogen MR11. 10-16v input range Dimmable Alloy case Bright warm white when lit, element appears yellow when off