These Energizer LED GU10 spotlight bulbs offer an 85% energy saving compared to traditional bulbs. They provide instant, flicker-free light and have an average rated life of 15,000 hours. The bulbs have a GU10 fitting and consume 4.2W, equivalent to a 50W traditional bulb. They produce 345 lumens of light with a warm white colour temperature of 2700K. The lamp dimensions are 54 x 50 x 50 mm, and they are dimmable. They have been rated 'E' for energy efficiency and can withstand 40,000 switching cycles.