Diameter 5cm height 5.7cm, standard size same as traditional GU10 halogen light bulb, perfect and easy replacement. Working voltage 85-265V, long lifespan The newest SMD2835 LED as a lighting source, low power 5W with high brightness, 90% lower consumption than a 60W halogen light bulb. It’s suitable for pendant lights, ceiling light fittings, wall or ceiling spotlights, track lights, recessed down-light, etc. GU10 Led Bulbs contains no lead or mercury, no hazardous emissions, no UV or IR radiation, is shock and vibration resistant, and very safe for your home and family.