This little flashlight packs a huge dose of brightness in a small package. Only 4.4 ounces and 5 inches long, but the 2 lithium batteries and Xenon-gas bulb produce 6.500 candlepower of brightness. It has a triple-action tailcap switch and a variable flood-to-spot focus. It even comes with a spare bulb in the lamp assembly. This is a great full-duty light, or backup flashlight to tuck in your turnouts or med bag for urgent use. Many folks keep one in their personal car glove box for emergency use. DON'T use this to check pupils though, its too bright for that.