Designed to Fit Standard U.S. Lamps and Light Fixtures</br>640 to 660nm Range</br>LED's are Closely-Set</br>Two Year Average Life</br>38 Premium High Intensity LEDs</br></br>Product Description</br></br>The RubyLux All Red LED Bulb is comprised of 38 premium intensity light emitting diodes (LED's) operating in the range of 640 to 660nm. This bulb is approximately 1.75 inches in diameter and 2.5 inches tall, making it fit easily into most lamps or light fixtures. What makes the RubyLux unique is that it is engineered as a bulb to fit into virtually any US lamp or light socket. RubyLux All Red LED Bulb is the best option on the market, utilizing superior engineering and manufacturing methods to bring you the most effective technology at the lowest possible price. Instructions and safety information can be found on our website at RubyLuxLights.com. The bulbs are 120V, intended for use in the US & Canada. Package includes one (1) bulb only. All other items, such as RubyLux Bulb Cover Shields and RubyLux Basic Goggles are sold separately.</br><br/>http://www.amazon.com/gp/product/B01544PUJ2