Get Ready for Brighter Days with ENERGY STAR® Certified Lighting Get instant, in-store discounts when you buy select ENERGY STAR certified lighting at participating retailers. Save up to $2 on Select ENERGY STAR Certified LED Bulbs LEDs, or light emitting diodes, are a rapidly evolving technology that produces light in a whole new way. ENERGY STAR certified LEDs last a minimum of 25,000 hours, or 22 years based on 3 hours of use per day. They also use about 70-90% less energy than incandescent lighting.* They are durable, versatile and come with a 3-year warranty. *Source: energystar.gov