Usage Tips:Feature: 1. Universal Voltage Compatibility & Battery Types: The MPPT solar charge controller boasts unparalleled versatility, automatically detecting and supporting 12V/24V/36V/48V battery systems. It's fully compatible with a wide ranging of mainstream battery types, including lithium-ion, lithium iron phosphate (LiFePO4), and leadacid batteries, ensuring perfect integration into any solar setup. 2. Maximized Charging Efficiency with MPPT Technology: Harnessing MPPT (Maximum Power Point Tracking) technology, this controller ensures quick and efficient charging, maximizing energy harvest from your solar panels. It also protects your batteries, extending their lifespan and enhancing overall system performance. 3. Versatile Operating Modes for Complete Control: Equipped with multiple operation modes including auto, light-controlled, test, manual, timer, universal, and light-controlled with delay, the controller offers unparalleled flexibility to tailor your charging experience. Effortlessly manage and optimize your solar energy usage. 4. Comprehensive Safety Features & Smart Charging: Rest assured with built-in safeguards against overvoltage, overcurrent, overtemperature, overload, and short circuits. When batteries reach full capacity, automatic disconnect ensures no overcharging occurs. Plus, automatic memory data storage ensures smooth operation in power cycles. 5. Intuitive LCD Display & Dual USB Charging: The clear LCD display provides real-time information on output voltage, battery level, mode status, and system health. Conveniently monitor and adjust settings at a glance. With dual USB ports, keep your devices powered up, from smartphones to tablets and cameras, directly from your solar system. 6. Wide Applications for Solar Solution: Suitable for a diverse array of solar applications, this MPPT controller is perfect for solar power generations systems, smart homes, portable solar chargers, solar monitoring systems, solar lights, solar signage, and more. Empower your green energy projects with reliable, high-performance control. Specification: Color: White/Blue(optional) Material: ABS Rated Charging Current: 100A/120A/150A(optional) Rated Output Current: 30A/40A/50A USB Output: 5V, 1A Solar Panel PV Input PeakPower: 100A: