Compact Tactical Headlamp. The smallest and lightest of our headlamps weighs in at just 64 grams; the Princeton Tec Byte is ideal for minimal pack space and weight. The light provides four modes, including high and low white spot beams, as well as high and low red beams for preserving night vision. Lastly, to complement its compact design, this headlamp is equipped with a sleek 3/4 inch strap.