UPGRADE TO LED – These bulbs are 15 Watt A19 LED that are an energy efficient replacement for incandescent and CFL bulbs. They have an E26 base and remain cool to the touch even when lit. And unlike fluorescent bulbs, they are instant-on at full 800 lumen brightness. ENERGY EFFICIENT – They give off as much light as a 100-watt bulb while only using 15 Watts of power. Estimated yearly energy cost is a low $1.69 (Based on 3 hours/day use at $0.11/kWh). Long life LED technology means up to 11,000 hours of reliable service so you'll need to replace difficult access bulbs less often. STEADY ILLUMINATION – Designed for steady and reliable brightness, ensuring consistent lighting performance without dimming capabilities. DAYLIGHT - At 5000K, these daylight bulbs provide a realistic glow in bedrooms, living spaces or anywhere you want to set a bright environment. THE SAFER CHOICE - These bulbs are ideal for both residential and commercial use. ETL Listed for damp locations. These bulbs contain no mercury or other harmful chemicals. RoHS Compliant. Dimensions 4.53” L x 2.36” D.