Designed to Fit Standard U.S. Lamps and Light Fixtures</br>510 nm</br>Closely-Set LED's</br>Two Year Average Life</br>38 Premium High Intensity LED's</br></br>Product Description</br></br>The RubyLux All Green LED Bulb is comprised of 38 premium intensity light emitting diodes (LED's) operating at 510nm. This bulb is approximately 1.75 inches in diameter and 2.5 inches tall?? making it fit easily into most lamps or light