Light Bulb,9W(60W Equivalent),A19 Photocell Sensor Bulb3000K Warm White, 2-Pack

🧿Dusk to Dawn: Built in photocell light sensor automatically detector the brightness, auto turn on at dusk(brightness30Lux). 🧿 Convenience: Plug and play, E26 base, timers or no additional hardware needed, you just need to turn on the switch one time,you don’t need to open the switch anymore, the bulb will auto on and off. 🧿 Save energy: These 9 watt dusk till dawn sensor bulbs provide 600-650 lumen's of 3000 Kelvin Warm white, which is equivalent to 60-watt incandescent with 85% less energy use,saving up to $55.94 over the life of the bulb vs. its incandescent equivalent (based on 3 hours/day, 11 cents/kWh, may vary depending on rates and use) 🧿Wide Application: Indoor/Outdoor use, waterproof/weather-proof, works in any position(up/down light fixture), Suitable for totally enclosed luminaires/fixture ( clear/translucent/frosted ) 🧿Important Tips:1.Not suitable for use with dimmer 2.Power switch should always be on as the bulb will shut off when it senses daylight 3. make sure the bulbs are not pointing directly at each other to avoid interference( bulb distance keep at least 2meter/6.6ft)