Low profile design prevents bulk and bounce associated with Normal head lamps. Auto-strobe sensor monitors ambient light, such as auto headlights, and signals a flashing Strobe to draw attention to your presence. Run wave sensor allows touch-free adjustment of five light modes with the Wave of your hand. LED lights with a maximum of 288 lumens and a rechargeable Battery with a burn time of 25 hours max. Water resistance of Ipx4 as well as weather resistant. Can be used for all sports, camping, working, hunting and more.