Replaces 15-40 watt for accent & decorative purposes. Save $137 in energy costs per bulb (Compared to using a 40 watt bulb at 12 cents kwh). 90% more efficient. 30,000 hour life. Hg - mercury free. 28 LEDs. Advantages of LED Technology: 90% more efficient than incandescent and halogen; Lasts up to 30,000 hours; Environmentally friendly; Mercury free; Solid state technology resists shock and vibration; Cool running; Lights up instantly. LED Advantage: Standard incandescent burns a filament that produces light and heat. This process wastes energy. Filament burns out at 2,000 hrs; LED technology uses LEDs instead of filaments therefore it produces no heat. LEDs use 90% less energy and last up to 30,000 hours. Made in China.