This vintage style BC B22 4W LED squirrel cage light bulb is a fantastic, state of the art, modern take on a design classic. Edison steampunk bulbs are currently being used in fashionable and trendy cafes, bars and restaurants around the world, but can often use a large amount of energy and need replacing regularly. But no more! This is a brand new, energy saving, long life bulb featuring an authentically detailed filament which replicates that of a traditional radio valve bulb but uses the latest led lighting technology.