Brightness output: 300/1000 lumens

Endurance time: 300 lumens for 2.5 hours, 1000 lumens for 1.25 hours

Two sets of switches: strobe switch and strong light (1000 lumens) and low light (300 lumens) switch

Four modes-strong light illumination, strong light flashing, low light illumination and low light flashing

The battery uses the classic 2 CR123A 3V batteries (not included)