The Klarus G15 is a compact light that includes a 21700 battery and has up to 4,000 lumens of output, great for EDC, camping, hiking, or indoor use. 

• 4000 lumens high output, 188 meters beam distance, compact size.
• 5000mAh 21700 Li-ion battery, long lasting runtime.
• Micro-USB 1.5A fast charging anywhere.
• Centralized controls for easy one-hand operation.
• 5 output levels and 3 flash modes (strobe/beacon/sos) for any scenario.