Solar Charge Controller (15A) — 12V / 24V Auto Identification Description A compact, easy to use solar charge controller designed for small offgrid systems. The controller supports automatic 12V or 24V recognition, delivers 15A charging current, and is suited for household and street light applications. It provides multiple protections to keep batteries and connected loads safe while improving energy conversion efficiency. Key benefits Simple installation and automatic voltage detection: automatically identifies 12V or 24V systems. The digital display shows 1 for 12V and 2 for 24V. Appropriate power for small systems: supports up to 180W at 12V and 360W at 24V (15A x voltage). Reliable protection: builtin protections for reverse connection, over discharge, over current, over charge, short circuit and power down reduce risk of component damage. Street light and household modes integrated: includes settings for street light control where LOAD is off during daytime and also switches off for undervoltage or overvoltage conditions. Specifications Item type: Solar Charge Controller Current: 15A Power rating: 180W (12V) or 360W (24V) Modes: Household type and street lamp type with automatic identification Package contents: 1 x Solar Charge Controller How to connect and operate All wiring must be done with power off. 1. Connect the battery first. Connect the positive terminal to the left terminal. After connection, the digital tube will display 1 or 2 to indicate 12V or 24V. After a few seconds the LOAD indicator and battery indicator should light. For street light mode, the LOAD indicator will be off during daytime and will be off if undervoltage or overvoltage is detected. If indicators do not behave as described, check wiring. 2. Connect the solar panel (battery board) next. Positive terminal to the left. The power indicator will become active and the controller will enter charging state. If charging does not start, check wiring. 3. Connect the load last. Positive terminal to the left. The connected light or load should operate. For street light systems, the light will be off during daytime and will be off for undervoltage or overvoltage. If the load does not operate, check wiring. Important: connect the three items in the above. Incorrect connection can damage the controller. Protection features Reverse connection protection Over discharge protection Over current protection Over charge protection Short circuit protection Power down protection Applications and use scenarios Small household solar systems for lighting and small appliances where automatic 12V or 24V detection simplifies setup. Solarpowered street lighting or pathway lighting using the street light mode to switch loads off during daylight and protect against battery faults. Renewable energy setups combining small wind turbines or solar panels to charge batteries and control DC loads. What it delivers A practical 15A controller for small offgrid systems that simplifies wiring, protects batteries and loads, and supports both household and street lamp operation with automatic voltage identification. Package 1 x Solar Charge Controller Notes and warnings Ensure all connections are made with power off. Follow the specified connection : battery, solar panel, then load. If indicators or load behavior do not match the instructions, verify wiring and polarity before powering on.