Don't let the compact size of the Streamlight Stylus Pro LED make you think this handy device lacks power. It has a peak beam intensity of 860 candela and light output of 90 lumens. Weighing only 1.64 ounces, it's roughly the size of a permanent marker and comes with a virtually indestructible pocket clip, making it easy to carry it in a purse, pack or pocket. The stylus light has two settings, a constant or momentary, and can be turned on and off with one hand thanks to the tailcap switch. Most importantly, it's built using aluminum alloy that resists shock, corrosion and water. It also includes a scratch-resistant lens.