PWM Solar Charge Controller, 6V 12V Panel Regulator for Lithium and Ni Mh Batteries

More compatibilIty with a variety of storage batteries such as VRLA battery, gel electrolyte (GEL) battery, 3.2 V x 2 iron phosphate based lithium batteries, 3.2 V x 4 iron phosphate lithium batteries, 3.7 V x 1 iron phosphate lithium battery. An open circuit is used to protect against overcharging, which effectively protects the solar panel. Turn on the floodlight automatically according to the brightness at sunset. Turn off the floodlight regularly according to the set value or automatically off according to the brightness at sunrise. 9 levels can be adjusted to control the light sensitivity Prevent the battery from overcharging, overcharging and discharging at night. It also has PWM charging protection. Automatically save different parameters set by the user, and the data will not be lost in the event of an unexpected power failure or battery consumption.