Used for 6 months to keep a Japanese grass lizard. I am selling it due to moving. The lamp was lit for 6 hours a day and used for 6 months. The effective lifespan is calculated to be more than half remaining. Rated voltage 100V 50/60Hz Rated power consumption 3W Socket GU10 Effective lifespan 5000-7000 hours (Lifespan目安 when the amount of ultraviolet light is 50% or less)