These lamps do not support the advertised wattage of 700pm. They seem to get that bright when initially switched on, but within a few minutes they stabilize at a lower light output level. They look good and offer warm color saturation, but the end result sucks. Another reviewer had tools to measure and explain light output loss. Too bad I didn't see this review before making this purchase. With three of these fans in each of our two children's bedrooms we wanted something in the E12 base that would give a higher light output as ceiling fans are the only light source in the rooms. They pride themselves on their good performance for just a few minutes and then settle for a much lower performance.