Features: The driving board circuit board charging module have efficient charging efficiency, which can fully charge the equipment in a short time, greatly reducing the waiting time of users and improving the efficiency of work or life. Adapt to a variety of devices, there is no need to worry about the problem that different devices cannot be charging due to different interfaces. It have strong adaptability and compatibility, and can basically meet the charging needs of all users. It have multiple protections functions, including overloads protections, overvoltages protections, short circuits protections, which can reduce the potential safety hazards caused by improper use or abnormal conditions. Suitable for Flashlights, small fan, mobile desk lamp, mini polishing machines, etc., widely used. Suitable for most chargers on the market (fast charging, slow charging is both acceptable, regardless of model) Specifications: Component:Metal Size:Approx.20.5x9.2mm/0.81x0.36inch Option Type:1pc/2pcs Gear: Three gears (low 30% - medium 60% - high 100%) Input voltages: 3~4.5V ( 3 C power battery, some batteries have insufficient power and cannot start.) Output power: 5-10w Charging port: TypeC Charging current: around 1 A Package Includes: Package A 1pc 5W/10W/LED Circuit Board Package B 2pc 5W/10W/LED Circuit Board note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.