5A step-down constant voltage constant current module, with MPPT function, charging the battery with solar panel can increase the charging current more than double, effectively shorten the charging time and reduce the volume of the solar panel.
It can charge battery, lithium battery, etc., with charge indication function to facilitate observation of charging state.
DIY is a regulated power supply with constant current function. It is not afraid of short circuit during use, which can protect the load.
Drive high-power LEDs, which can be combined in series and parallel, can power your electronic device.
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