Standard Life Incandescent PS Base Lamps Imparts a sparkling radiance to larger luminaires. Standard Life Incandescent, vacuum or gas-filled lamp has a crystal clear bulb and a completely visible filament, so the brightness of the light is not 'softened.' It imparts a sparkling radiance to larger luminaires and wall brackets with textured or satin-etched glass adn cut crystal. It is the appropriate lalmp for large luminaires with clear glass bowls, mounted indoors or outdoors. It is recommended in all such cases where brilliance and sparkle are more important than the avoidance of glare. These lamps are also used for indirect lighting in closed luminaires. Single coil or coiled-coil filament.;Crystal clear bulbfor brilliance and sparkle.;Available in 200W, 300W , 500W, and 750W versions. Suited for a wide range of applications in areas surrounding homes, public buildings, retail outlets, factories, warehouses and outdoor factory yards.