Energy-Efficient Lighting has evolved rapidly over the past decade, as the more efficient LED light bulbs replace CFLs and incandescent light bulbs. Today, LED bulb technology has advanced to offer light bulbs for most fixtures and applications, in cool and warm light, and in dimmable and non-dimmable options. LEDs contain no mercury, and are very durable. And while the initial cost of LEDs seems high in comparison to other bulbs, they are actually less expensive to use for the overall life of the bulb than CFLs or incandescents. For these reasons, Eartheasy only sells LED bulbs, as we believe this is the best value in lighting today. To learn more about energy-efficiency lighting, read our Guide to Energy-Efficient Lighting, and our LED Bulb Comparison Charts.