Satco 125 Watt R40 Incandescent Heat Light Bulb is an efficient heat lightbulb designed for both radiant heating and drying applications. for use in residential or commercial settings, this bulb full dimming capability to suit various needs while providing a long lifespan for reliable performance. Its versatile design makes it an excellent choice for maintaining warmth or aiding in drying tasks with ease and efficiency. Model Number: S4750