1. Type-C charging interface, adapt to a wide range of chargers, enhance the charging efficiency, for the flashlight to quickly replenish the energy. 2. Provide two modes of switching between medium brightness and high brightness to meet different lighting needs, which can be used for long-distance irradiation as well as short-distance lighting, saving energy. 3. Apply 10W high power LED beads, optimize the circuit layout to maximum brightness output and reduce energy consumption, enhance the overall performance of the flashlight. 4. Adopt high efficiency driver chip, optimize the circuit design, reduce power consumption and heat generation, enhance the overall performance of the flashlight. 5. Adopting high quality switching components to long switching life, good operation feel, even in harsh environments can work stably. Parameter: Input voltage: 3.2-4.2V (suitable for one lithium battery) Output voltage: 3-3.3V Output current: 1.8-2A (suitable for 6-10W lamp beads) Gear: two gears (medium brightness 50percent - high brightness 100percent ) Charging port: Type-c Colour: Material:PCB Package Contents: 1 * Flashlight driver board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.