RFFL-03LED Flashlight Theoretical brightness: 800 lumens Brightness: 650 lumens Power: 10W / 3.7V-4.2V Weight: 125g Material: Aluminum Size:125mm*27mm Power source: 1*18650 rechargeable Li-ion battery (Dia.18mm x H. 650mm) Runtime: 2 hours Distance: 100-200 meters Modes5 modes: (High>Med>Low>Strobe>SOS) IP grade: Max. IPX4