Solar Charge Controller, Topsolar 30A Panel Controller 12V/24V PWM Auto Parameter Adjustable LCD Display Battery Regulator with Dual USB Port

WIDE COMPATIBILITY: The solar charger controller with 20A rated discharge current is compatible with 12V or 24V system automatically, suitable for lead-acid batteries RELIABLE PROTECTION: The solar charge regulator provides over-current protection, short-circuit protection, inverse connection protection, low voltage and overcharge protection, a reliable protector for your devices. [Easy to Install and Operate] The charge controller should connect the battery first, then the solar panel, and finally the load! The disassembly sequence is contrary to the wiring order.Dual mosfet Reverse current protection, low heat production. ( Note: The charge controller will heat up when it is running. Please be careful to install the charger controller on a flat, well-ventilated place).