Universal Voltage & Battery Compatibility: This MPPT solar controller automatically adjusts to 12V, 24V, 36V, or 48V battery systems. It supports multiple battery types including lithium-ion, LiFePO4, and acid batteries, seamlessly integrating into diverse solar setups. Enhanced Charging with MPPT Technology: Utilize Maximum Power Point Tracking technology for efficient solar energy conversion, significantly boosting charging speed and energy yield. This technology also prolongs battery life and optimizes system performance. Flexible Operation Modes: The controller features multiple modes such as auto, manual, timer, and test, providing extensive control over your solar charging process. Tailor your energy management to meet specific needs and conditions effortlessly. Robust Safety Features & Smart Charging: Equipped with protection against overvoltage, overcurrent, overheating, and more. It features an automatic disconnect to prevent overcharging, coupled with a memory function that retains settings during power interruptions. User-Friendly LCD Display & Dual USB Ports: Monitor system metrics like output voltage and battery status on a clear LCD screen. The dual USB ports offer convenient charging for devices such as smartphones and tablets directly from your solar system. (Due to different batches, the product appearance and printing may be different, but it not affect the use) Color: Blue Material: ABS Package Contents: 1 * Solar MPPT Controller 120A Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.