GE Lamps Quartzline incandescent lamp in clear finish has a power rating of 250 watt and voltage rating of 120 volt. Lamp with medium screw base offers a average life of 5000 hour. It offers a brightness of 2200 lumen and is ideal for decorative as well as chandelier applications. It measures 5 inch diameter x 6.560 inch. Great for use around the home, garage, and workshop120 voltsLasts 5,000 hoursR40 shape with medium baseUses 250 wattsRed light bulbGE heat lamps have many uses around the home, garage and workshop. Use GE heat lamps at home to heat small areas of the bathroom and bench, or to prevent freezing of water pipes, car radiators and pumps.