Enjoy all the benefits of advanced LED energy saving technology with the Feit Electric A450/850/10KLED/4 4/PK 40 W A19 LED light bulbs. This 5000K natural daylight bulb is non-dimmable and will replace 40 W equivalent incandescent bulbs. It produces a similar light output (450 Lumens), uses 5.5 W of energy and up to 86% less energy than a standard incandescent light bulb. Get instant on to full brightness with relatively cool running performance. Feit Electric A19 bulbs have an average life of 11,000 hrs/10 years are RoHS compliant and are 100% mercury-free. Choose a dependable general-purpose bulb for residential or commercial applications.