charge your cell phones or tablets via usb port by solar charge controller.
- build-in industrial micro controller with large lcd display and all adjustable parameter.
- full 4-stage pwm cargo management.
- built-in short circuit protection, open circuit protection, reverse protection, overload protection.
- dual reverse current protection, dual mos anti-backflow circuit and low heat production.
- adjustable charge and discharge parameters.
- integrated 3 steps pwm charging management
