Technical Specs Best Use Backpacking Running Bulb Type LED Bulb Detail 5 white LED / 2 red LED Red Light Mode Yes Beam Type Flood / Spot Max Light Output (Lumens) 330 lumens Light Output High: 330 lumens; low: 5 lumens Max Beam Distance (m) 75 meters Beam Distance High: 75 meters; low: 16 meters Brightness Levels 3 Strobes 1 Average Run Time High: 3.5 hrs.; low: 40 hrs. Rechargeability Rechargeable Batteries USB Rechargeable 900 mAh lithium ion Dimensions 3.74 x 2.36 x 1.38 inches Ultralight Yes Weight With Batteries 2.43 ounces Sustainability From a Climate Neutral Certified brand