Sunlite LED torpedo tip B10 bulbs are designed to give you up to 25,000 hours of reliable service. That means fewer replacements for difficult to reach bulbs. These dimmable and energy efficient lamps provide the same output as a 40 watt bulb while only using 5 watts of energy. With 3 hours of daily use the annual operating cost is only $0.60 per bulb. (Based on $0. 11/kWh). LED technology means they are cooler to the touch when lit and instant-on at full brightness. The european base (E14) and classic shape make them perfect for chandeliers, wall sconces, decorative lamps, and many other fixtures. Ideal for both residential and commercial use.