SYLVANIA 2-pack 40W indoor A15 ceiling light incandescent bulbs are ideal for indoor home use. They have a rated-life of 3,000 hours and require less frequent bulb replacements. These double-life bulbs last 2 times longer than the standard incandescent light bulbs. These high quality bulbs help in reducing energy cost by 25%. See the clear difference SYLVANIA makes; better lighting for better living.