The Ledvance led pin 40 320 degree dimmable p 4.5w 827 clear gy6.35 special lamp is the ideal replacement for your old Pin 40 halogen lamp. It offers a number of advantages over traditional halogen lamps. · · · Variable use at Direct Current and Alternating Current · · Good all-around light emission · · Ideal for decorative and free-burning applications · · Very long lifetime of up to 25,000 h · · Four year guarantee · · Dimmable · · Compatible with many common conventional and electronic control gears · · LED alternative to low voltage halogen lamps