Material: Aluminum Alloy + ABS Model: 4101-5 Light Bulb: 1 x XML-T6 + 4 x XPE LED Switch: Head Push Switch Battery: 2 x 18650 Batteries (sold separately) Charging Mode: USB Charging: IPX6 Luminous Flux: 20,000 lm. Weight: Approx. 7.5 oz (216 g). Packing List: 1 x LED Headlamp.