Looking for something to light up a very busy area such as a Shopping Mall, Museum, Events, or even for Dental Projection. These bulbs are perfect for that, at 6000 Centerbeam Candlepower it'll make even the brownest smile turn white, the least interesting painting into a work of art, or even make a manikin look slightly human. They have a rated life of 4000 hours. The ESX 20 watt MR16 has a beam angle and beam spread of 8. This helps focus all the light in a small area lighting it up with a beautiful color and luminosity. It utilizes a GU5.3 2-pin base and has a rated life of 4000 hours making replacements few and far between. These bulbs have a Warm White Color Temperature at 3000K.