... housing, anodized anti-abrasive finish5. 4 x 18650 4400mAh Li-ion battery pack, long runtime6. Battery overcharge protection, Low battery warning.7 ... . [Luminous flux] 1200 Lumens3. [LED lifespan] 100,000 hours4. [Battery pack] 8.4V/4400mAh5. [Run time] 4.5 hours (max output ...