Perfect for conserving energy and cost. This LED dimmable light bulb is a replacement of the 40 watts light bulb. It only uses only 8 watts. It's brightness 500 lumens and uses 80& less energy. It has 25,000 hours of lifespan. It has a warm white 3000K and its mercury free. Comes packaged in a countertop display and four 7" x 5" x 2" blister pack.