1、90° free adjustable of the lamp head, strong long‑range shooting, red and blue warning design, press to change 5 gears, long press to 4 gears. 2、The flexible lamp belt design, adjustable according to the size of head, easy to operate, easy to use, and convenient for working lighting. 3、Red warning, the back of the battery compartment adopts the LED red warning light design, which is safer to use when going out. 4、Rear battery compartment, wide voltage design, using 2pcs 18650 rechargeable lithium batteries (not included). 5、Direct charging hole in the battery compartment, head charging hole, charg quickly when connected with power source, extending battery life. 6、USB interface charging, support various USB devices, power display, real‑time power monitoring, and know the power situation at any time. 7、It is small in size, easy to use and easy to carry, and it is ergonomically designed. 8、It is suitable for outdoor activities such as camping, hiking, night running, cycling, night fishing, cave exploration and so on. Item Type: Headlamp Material: Aluminum Alloy+ABS Color: As Picture Shown Size: Approx. 8.5x6x4.4cm/3.3x2.4x1.7in Weight: Approx. 266.0g/9.4oz Applicable Batteries: 2Pcs 18650 Batteries (not included) Working Voltage: 3.7V Power: 10W Luminous Flux: 1800lm Color Temperature of Light Source: 9000K Lamp Bead Model: 1Pcs L2 Wick (main lamp), 2Pcs T6 Wicks (auxiliary lamp), 2Pcs COB Light Sources Lens: Flat Lens Directly Charge: Support Adjust Focus: Not Support Waterproof: Life Waterproof How to use: Working Mode 1 (5 Gears): L2 main light is on, two auxiliary lights are on, main and auxiliary lights are on, patch COB power saving mode, five lights are all on; Working Mode 2 (4 Gears): long press to enter, COB red and blue warning, main light + red and blue warning, auxiliary light + red and blue warning, SOS flashing, double-click in any gear to close, and reset. 1 x Headlamp 1 x USB Charging Cable 1 x Manual