Westinghouse R40 250 Watt Red E26 (Medium) Base Incandescent Reflector Light Bulb - 2 Pack This incandescent heat lamp bulb is used with specific recessed light fixtures to dry off after a shower.olts This 250 watt incandescent light bulb has a lifespan of hours reducing the need for frequent bulb replacements. This incandescent Reflector light bulb is ideal for specialized household use in recessed heat lamps. This heat lamp bulb is appropriate for use in chicken coups. Last up to an average of 5000 hours