The Vintage Series from Bell Lighting offers antique-style bulbs at affordable prices, including the 40W Vintage GLS Twisted Filament. This vintage bulb features an Edison Screw cap (ES/E27), an impressive life of 4,000 hours, a Amber finish, and an eye-catching Vintage GLS Twisted filament. It is also compatible with dimmers and all manner of switch types. Single coil filament to replicate antique bulbs Long life - 4000 hours Also available with Clear finish Vintage GLS Twisted Filament Lamp Suitable for industrial and commercial use only Suitable for dimmers and all switch types Energy Rating: G Dimensions: 108mm x 60mm