The convenient Stylus (65018) pen light from Streamlight is a sleek light that uses three AAAA batteries and goes anywhere you need it. With 11 lumens of white light it functions as a perfect inspection light for under the hood in your purse or at work. A little over 6 inches it fits perfectly in your pocket and comes with a pocket clip. Features a momentary blink switch and constant on . Factory service and repair in Pennsylvania.