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Polaroid solar charge controller for solar panels.The Polaroid Solar charge controller is a PWM device that uses the latest digital technology and impresses with its simple operation and control.Charge and use your devices directly via the solar energy from your solar panel, such as Polaroid SP50 or SP100.Smartphones, tablets, power banks, lamps and all other DC devices (5V) can be connected directly to the USB output of the charge controller. In addition, devices can also be connected and charged via the alligator clamps (e.g. lead-acid batteries).This text is machine translated.