These standard light bulbs have a medium screw base, also called an E26 base. The most commonly used type of light bulb base, an E26 base has a 26mm diameter and screws into a standard E26 socket. General purpose E26 medium screw-base light bulbs are used in fixtures such as table lamps, recessed can lights, and track lights. Standard light bulbs and lamps are used for a wide range of lighting applications in workplaces or homes. They come in standard base types and bulb shapes to fit a large variety of light fixtures, such as desk lamps, table lamps, and task lights. Technical Specifications: Overall Bulb Shape: A Bulb Shape: A19 Overall Bulb Base Type: Medium Screw Bulb Base Type: Medium Screw (E26) Light Technology: LED Color Temperature: 2,700 K Lumens: 480 lm Wattage Equivalency: 40W INC/9 to 11W CFL Watts: 6W Voltage: 120V AC Bulb Beam Angle: 360 Degrees Dimmable: Yes Trade Number: LED6DA19/827 Bulb Primary Application: General Purpose Bulb Type: Standard Bulb Dia.: 2 3/8 in Overall Length: 4 1/2 in Rated Life: 15,000 hour Indoor/Outdoor Usage: Indoor Only Shatter-Resistant: No Rough Service: No Bulb Finish: Frosted Bulb Housing: Polycarbonate Bulb Power Source: Direct Wired Light Distribution: Omnidirectional For Enclosed Fixtures: No Color Rendering Index: 80 Color Tuning: No Three-Way: No High Output: No Bulb Minimum Starting Temperature: -20 Degrees C Energy Star Compliant: Yes Bulb Operating Temp. Range: -20 Degrees to 40 Degrees C Bulb Manufacturers Warranty Length: 5 yr Standards: UL 1993 Green Certification or Other Recognition: ENERGY STAR(R) Certified