About the Light Efficient Design Pageant Series LED4231A 410 Lumens LED Light bulb, MR16 GX5.3 BiPin, 12V, 40W Equivalent 5700K 30 Degree Beam AngleThe Light Efficient Design LED4231A is a very efficient light bulb designed to fit with most LED MR16 GX5.3 lighting modules. Using only 7watts of LED power, the LED4231A produces high power lumen output equivalent to a standard 40Watt lightbulb. LED light bulbs feature qualities that provide healthier alternatives to lighting, as well as costefficiency. The LED4231A is not composed of any forms of mercury and also produces no UV rays. With the addition of this LED light bulb, you#39;ll be able to obtain safe, efficient, and powerful lighting.The Light Efficient Design LED4231A LED light bulb is a7 watt bulbthat produces the same output equivalent to a 40 watt halogen bulb. The color temperature of the LED4231A is 5700Kwith a CRI of 80, producing a color similar to that of daylight. Providing beautiful light to wherever your application, this LED light bulb has an effective light output of410 lumensWith the lower wattages used by LED light bulbs, the LED4231A can potentially save your home up to 80 in lighting costs. The LED4231A can also be used in dimmable applications where LED dimmers are wiredin. Also, an LED light bulb can replace 40 lightbulbs, greatly reducing waste.With an effective beam angle of 30 degrees, the Light Efficient Design LED4231A has an average lifespan of 50,000 hours, typically requiring a replacement every 17 yearsAdditional Product Information:Product Notes:For indoor use only in "open air" or nearly "open air" fixtures, such as exposed track and suspended features.All LED bulbs cannot be used in fully enclosed fixtures. Use with magnetic transformers only or approved LED electronics.