Ultimate® lithium LED headlight has a serial switch that activates 5 light modes - white (high, medium, low), strobe red, green find me or follow me LED. Boost button provides 100 lumens of bright light for up to 15 seconds. Focusing mechanism regulates beam from tight spot to wide flood. Pivoting head allows light to be directed where needed. Packed with 3 AA Energizer® Ultimate® Lithium batteries.