Reliable protection and smart control for solar-battery systems Key benefits — why you need this unit Protects batteries and electrical loads from damage: prevents over-discharge, under-voltage, and abnormal voltage conditions, and stops overloads caused by excessive load discharge current. Prevents wiring mistakes and reverse currents: built-in reverse protection for solar panel and battery connections reduces risk from incorrect wiring or backfeed. Automates lighting and charging to save energy and extend battery life: configurable light control with adjustable on-duration and selectable time-control charging modes let you match system behavior to real-world needs. Simple, predictable operation reduces maintenance and downtime: safety cutoffs and timing functions keep the system operating within safe limits without constant supervision. Core functions (what it does) Battery over-discharge / voltage / under-voltage protection: automatically disconnects or limits load to prevent battery damage when voltage drops below safe thresholds. Load overload protection: detects excessive load discharge current and protects both battery and connected devices by interrupting output as needed. Solar panel / battery reverse-connection protection: prevents current flow when panels or batteries are connected with reversed polarity. Light control plus time delay: when light control is enabled you can set how long the light stays on after activation. Time-control charging mode: manual programming of charge-on and charge-off times for scheduled charging windows. Compatibility and use Designed for use with solar panel and battery-based systems; suitable wherever basic charge control, load protection, and timed lighting are required. Works with typical DC solar lighting and small off-grid battery setups (confirm compatibility with your system voltage and battery type before installation). Practical applications Off-grid or backup lighting: automatically turn lights on at dusk with a preset run-time, while preventing battery over-discharge overnight. Small solar installations for cabins, sheds, or remote equipment: protect batteries from reverse connection and overload while scheduling charging periods to match solar availability. Remote sensors or telecom repeaters powered by solar and battery: use time-controlled charging and protection features to maximize uptime and prolong battery life. Operation notes Use the light control mode to set the light-on duration with a delay feature. Use the time-control mode to manually set charging start and stop times. Ensure correct polarity when wiring; the unit’s reverse-protection reduces risk but proper installation is still required.