Feit Electric BPA800/850/DD/LED Electric Built-in Photocell Dusk Till Dawn Non-Dimmable Led Light Bulb, 9.5 W, 120 V, 800 Lumens Built-in automatic sensor turns bulb on at night and off during the day Daylight instant on to full brightness 84% more efficient than a standard incandescent 60 watt a19 UL and CUL listed Long life, durable and low heat a19 LED