These fantastic retro light bulbs are based on traditional 1930&0s carbon filament edison bulb designs. These classic shaped bulbs have a decorative hand stitched spiral filament which glows intensly for a dramatic decorative effect whilst radiating a wide spectrum natural light. The bulbs are dimmer switch compatible allowing for energy saving & extended life. Available in E27 (Screw) or B22 (Bayonet) fitting, these wonderful vintage light bulbs look great when used in exposed lighting fixtures & are well suited for use in many of our industrial lighting products.