KINGSO E11 4W LED Bulb 40W Halogen Replacement Lights 450 Lumens, Mini-Candelabra Edison Screw, 110V, Pure White, Pack of 2 Units Brightness: 450 Lumens, 110-130 Volts, 80 CRI, Mini-Candelabra Edison Screw Not dimmable, don't use them with dimmer switch! LED Lifetime: Lasts up to 3-4 times as 40W halogen lamps E11 Base LED Bulb, 4W (40W Halogen Equivalent) Energy Efficient, Non-Dimmable Cabinet Lighting, Closet Lights, Outdoor Lighting, Wall Sconces, Enlargers, Modeling lamps, Photoflood Fixtures and Studio Lighting, & more. For Use in Ceiling Fans, Line Voltage Pendants, Chandeliers, Portables, and Track Lighting, Table/Desk/Floor Lamps, Recessed JD Lights, Show Lights