The use of a photoresistor is not required, but the effect is much better than that of a light-sensitive control: many friends are asking you why this control board does not have a light-sensitive element (photoresistor). The board is based on the solar panel to charge the lithium battery and also to be photosensitive The components are used to control the output, which realizes automatic charging during the day and lights automatically when it is dark.Applicable to: low-power solar garden lights, lawn lights, lanterns, string lights, DIY small street lights and other low-power solar application products,charging and automatic switch controlParameters: The control board adaptive 4.2v (3.7), 8.4v (7.4), 12.6v (11.1), 16.8v (14.8) lithium battery with protection circuit

Solar panel power	Open circuit voltage	Operating Voltage	Working current	Lithium battery string	Lithium battery total voltage	Control board output current	Output Power
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