Three light levels: Up to 115 lumens (high), up to 50 lumens (low), Strobe function Comfort: Contains soft pads and an adjustable harness Rechargeable lithium battery: Charge time 1.5 hrs Long operating time with just one charge: 4.5hrs (high), 5.5hrs (low) For professional and private use: Different functions to be able to adjust the light according to individual preferences