Product model: T138-P99 (9 cores) Product bulb: P99 (9 cores) (theoretical life: 100,000 hours) Switch type: push switch at the lamp head Working gear: 3 gears: strong light, weak light, flash Luminous color: white light on the lamp head, red warning light on the rear of the battery compartment Waterproof grade: IPX5 (proof against rain and splashing water) Working voltage: 3.7V Product material: aluminum alloy+ABS Charging method: micro USB charging supports power output Surface treatment: wear-resistant anodizing Set: (headlamp+3*18650 batteries+USB cable+color box) Product selling point: P99 light bulb, the actual brightness can reach 3000-3500 lumens The machining center has exquisite carving technology, segmented current, and easy heat dissipation Large lens, large aperture, wide irradiation range The battery compartment has input and output functions and can be used as a mobile power bank. The battery compartment has a power display and 4 LED display lights. Each LED has a 25% power meter An anti-slip strap is added to the headlight strap, which is non-slip, comfortable and pressure-free Package:1pc