12V/24V auto detection; Rated Charge & Discharge Current 30A; USB Output 5V/2A max; Industrial-grade master chip; Large-screen LCD display; Adjustable charging and discharging parameters. This solar regulator combines high efficiency and strong protection features. Double MOS series circuit control reduces voltage loss by 50%. Dual MOSFET reverse current protection helps prevent battery drain when the panel is inactive, with low heat production. Note: all electronic components generate heat; shield the unit from direct sunlight and damp places to optimize heat dissipation. Built-in safety protections include overcurrent, open-circuit protection, and reverse protection with a self-recovery design, so there is no damage to the controller. Suitable for home, industrial, and commercial use. Battery compatibility: for lead acid batteries only (open, AGM, gel). It is not suited for nickel metal hydride, lithium ions, or other chemistries. Applications: - Off-grid homes or cabins with lead-acid battery banks, managed charging and discharging. - RVs, boats, or other mobile setups where reliable solar battery management is needed. - Small commercial installations or emergency backup systems requiring robust protection and self-recovery.