Gu4 3w 12v led reflector bulb with eec athe compact gu4 bulb has a beam angle of 30 and illuminates a room in warm white lighting at 2 900 kelvins colours look very natural thanks to the colour rendering index of ra80 the reflector bulb saves considerable energy and can be used to replace standard halogen reflector bulbs up to 15 watts note please take the dimensions into consideration