Westinghouse 6-Watt (40W) A19 Dimmable LED Light Bulb is ideal for everyday use. The bulb can reduce energy and operating costs up to 90% compared to a standard incandescent bulb with the same brightness. This LED lasts over 22 years versus a 40-Watt incandescent bulb which only lasts 1 year. This LED saves about $93 in energy costs over the lifetime of the bulb compared to an incandescent bulb. This medium-base light bulb turns on instantly, is fully dimmable and is compatible with most dimmers. This light bulb produces an energizing light resembling daylight, which is perfect for overall and task lighting. It turns on instantly and is compatible with most dimmers. Ideal for use in pendant fixtures, table and floor lamps, ceiling fans. Free of harmful mercury, this LED is an environmentally-friendly choice. Westinghouse is a trusted, global brand. Westinghouse knows lighting and offers products with exceptional quality, reliability and functionality. Based on burning 3 hours per day at 11 cents per kilowatt hour for 22 years or 25,000 hours. Product reference number 05144.