Pairs GLS TO Sensor LED Bulb E27 Light Description: 5W LED bulb with built-in dusk-to-dawn sensor that turns on in the dark and automatically turns off in daylight. This is a very good replacement for old-style bulbs. It features a new generation high-performance LED with super bright light output, built with high quality and a long lifespan. Good performance: 6500K daylight white (crystal), 15 lumens, emits a warm and inviting light. Perfect for home lighting. Widely used: The E27 bulb with a medium screw base operates with a dusk-to-dawn sensor. It comes in GLS form with Edison CB B22 and E27 ES bases, has a very long lifespan, and is not dimmable. It can be used as a common LED light and for special purposes with its multifunctional design. Perfect for general room lighting, night light, and outdoor security light. Specification: Item Name: Dusk-to-Dawn Sensor LED Bulb Product Size: 60 x 60 x 110 mm Wattage: 5W Operating Voltage: 85-265 Volts Light Color: Cool White Color Temperature: 6500K Dimmable: No, not to be used with a timer, sensor, or dimmer switch. Usage: Indoor or Outdoor Package Includes: 4 Bulbs