The 15W Amber BC Bayonet Pygmy Incandescent Bulb is a coloured light bulb made of glass, featuring a filament design for a warm and cosy lighting effect. With a bayonet connector and a sign/pygmy bulb shape, this indoor bulb emits a lovely amber light that adds a touch of vintage charm to any room. Made in the United Kingdom, this energy-efficient bulb is 63mm in length and 28mm in width, providing a subtle yet effective illumination for your home décor.