By using the solar charge controller, it helps you manage the working of solar panels and batteries in solar systems automatically. This product will help you improve the system efficiency safely and prolong the life span of the battery. Ideal for any solar lamp. Our solar panel charge controller is designed with high-strength ABS plastic shell, which has the advantages of impact resistance, high-ignition point, anti aging, corrosion resistance and more. This product has a longer lifespan than others. It is constructed of ABS material. The length of this product is 10.6cm, the width is 10.5cm and the height is 4cm. This product is perfectly suitable for home, household, factory, workshop and so on. Item Name: Battery Regulator Material: ABS Rated Voltage: 2V/24V Rated Current: 30A Maximum Photovoltaic Voltage: 50V Maximum Power: 390W (12V)/780W (24V) Features: Simple Operation, Safe, Plug-and-Play Size Details: 10.6cm x 10.5cm x 4cm/4.17" x 4.13" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Battery Regulator