Check the listing for details. DEWENWILS 4-Pack Smart Automatic On/Off Photocell Sensor A19 E26 Porch Bulb. Condition: New. Listed at 17.99 USD. DEWENWILS 4-Pack Dusk to Dawn Light Bulb Led Outdoor Lighting, Smart Automatic On/Off Photocell Sensor A19 E26 Porch Light Bulb, 2700K Soft Warm White, 9W (60W Equivalent), 800 LM, UL ListedDEWENWILS is a professional manufacturer specializing in Home Improvement, Consumer Electronics and Outdoor Equipment. Our primary aim was to provide you and other valuable members with higher quality products. A satisfying shopping experience is amongst our top priorities.Auto On/Off LED Light BulbDusk to Dawn SensorBuilt-in photo sensor, the bulb lights ON and OFF with the sensing of daylight. When dusk hits, the light bulb automatically senses the light bulb to turn ON. Similarly, when dawn arises, the light bulb will turn itself OFF.2700K Warm WhiteThe bulb gives off a soft white glow, creates a warm and inviting ambiance which is best suited for areas in the home,such as front door, porch, patio, garden, hallway, garage, street lamp, etc.Base Type: E26Wattage: 9W (60W Equivalent)Lumen: 800lmLight Color: 2700KCRI: 80+E26 Base Indoor Outdoor Security Night LightingEnergy Efficient60 watt replacement uses only 9 watts of energy and produces about 800 lumens of light. Lasts over 10,000 hours, these dusk to dawn LED bulbs will save your time, effort and also cut down your electric bill.Warm ReminderLet the sensor (the red disc on the bulb) be exposed to ambient daylight when installation; Protect by covers if use outside; Keep the light switch on to provide electricity; Non-dimmable; not compatible with light dimmers.Wide ApplicationSimply screw it into a standard E26/27 light socket and leave the light switch on to provide electricity; perfect for front door, porch, courtyard, garage, hotel, street lamp, gardens, shopping malls, or any other places where accent lighting is required