Adaptix and Kinesix feature available on 250L model Kinesix gesture control lets you change modes with a swipe of your hand Adaptix light sensor auto-adjusts the beam pattern and brightness for lighting short and long distances Rugged exterior provides a rugged, comfortable grip and increased impact resistance Batterylock system stops battery drain to preserve Battery life and reduce corrosion Comfort tension system uses soft, fabric tensioners that are adjustable while wearing your headlamp 5 modes: high spot, high flood, low spot, low flood, red