Thoughtful design: A negative-control circuit helps identify system voltages to enable seamless connection between solar panels, batteries, and the positive terminal on the solar charge controller. Automatic voltage correction: Automatically corrects charging and discharging voltages, with an assumed timer for streetlights and selected load modes to extend battery life. Data monitoring: Seamlessly logs total runtime, fault timer, and complete charging cycles. This solar charge controller ensures you never lose data. Easy installation: Install near the battery to minimize interference from long wires, enabling accurate voltage readings, facilitating smooth parameter adjustments, and maximizing energy efficiency. Use scenarios - Street lighting projects that use a timer and optimized load modes for longer battery life. - Off-grid cabins or workshops with battery storage and reliable voltage regulation. - RV or marine solar setups requiring consistent control, data logging, and easy near-battery installation.