MPPT Solar Charge Controller with LCD and Seven Control Modes Key benefits Higher charging efficiency through MPPT tracking for improved solar energy conversion. Flexible load control with seven programmable working modes to match different applications. Clear real time monitoring on a backlit LCD that displays mode, battery voltage, PV charging current, discharge current, temperature, and delay time. Broad battery compatibility and dual 5V USB ports for convenient device charging. Main features Seven control modes including charging mode, light control mode, light plus delay control mode, universal control mode, manual control mode, timer control mode, and sync control mode. Sync control mode can be programmed to turn the load discharge on or off. Test mode behaves like the light control mode with delay but removes the ten minute delay to allow immediate verification. Low voltage protection remains active. When low voltage protection triggers, the controller allows a brief discharge pulse of approximately 5 seconds before continuing standard protection behavior. MPPT solar charging algorithm with backlit LCD and integrated clock display for scheduled control and monitoring. Built in protection features for overvoltage, overcurrent, power loss, overload, deep discharge, reverse connection, and overheating. Compatibility and charging options Auto detects system voltage for 12V, 24V, 36V, or 48V systems. Supports common battery types including Sealed, GEL, Flooded, and LiFePO4. Note that LiFePO4 batteries require manual adjustment of overcharge or overload voltage settings during setup. Use photovoltaic panels as the charging source only. Do not connect non photovoltaic DC sources as the charging input. Dual 5V USB output ports for charging phones and small devices. Installation and operation notes On first installation ensure the battery has sufficient voltage so the controller can recognize the correct system voltage. Install the controller as close to the battery as practical to minimize voltage drop from long wire runs, which can affect voltage detection and operation. The controller will generate heat during normal operation. Mount it on a flat, well ventilated surface to allow adequate cooling. Do not use this controller with NiMH or other unsupported battery chemistries. Practical use scenarios Off grid cabin lighting and battery management where light control, timer, and delay functions automate evening loads while MPPT charging improves battery recharge times. Small solar street or garden lighting systems where sync control and timer modes schedule discharge and test mode allows quick on site verification. RV and marine battery systems where multi voltage auto detection and LiFePO4 compatibility combined with USB outputs provide power management and device charging. What this controller delivers Reliable MPPT charging performance, flexible load control, and clear system feedback on the LCD to simplify setup and daily operation. The controller is designed for photovoltaic charging systems requiring versatile control modes and multiple battery type support.