A19 Dusk to Dawn LED bulbs provide 1100 lumens of 4000K cool white light, equivalent to 75-Watt incandescent bulbs with 88% less energy spend. These bulbs fit standard E26 medium screw base fixtures so they can be installed easily – Idealy used indoor or outdoor in enclosed fixtures. With a life of 15,000 hours, the bulbs will last over 13.7 years (based on 3 hours of use each day) Shape: A19 Type of Bulb: LED Wattage: 9 Watt (equivalent to 75-Watt incandescent bulbs) Luminous Flux: 1100LM Color: 3000K Warm White Lifespan: 15000hrs Features: Dusk to Dawn Automatically power on/off vAdvanced LED chips vSuitable for both indoor and outdoor use, Porch Hallway Garage vSUITABLE for dry and damp locations