Welcome to our store！</br> 1、[12V 24V Automatic Identification] Using industrial grade main control chip, high quality components improve system performance, the highest conversion efficiency is 98%, ultra fast tracking speed, the controller is 12V 24V automatic identification, compatible with 12V 24V system. 2、[Good Electrical Conductivity] The internal material adopts copper terminal, which has better electrical conductivity and low loss, so you can use it with confidence. 3、[Multifunctional] Large LCD screen display, dual USB ports, multi function control panel, high current overvoltage protection, intelligent clock timing, automatic voltage control. 4、[Simple To Install] The charge controller should be connected to the battery first, then the solar panel, and finally the load, in the reverse order of removal and wiring. 5、[Widely Application] Widely used in solar off‑grid power supply systems such as homes, schools, streets, stations, power stations, pastoral areas, fields, etc. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Solar Panel Controller Material: Shell plastic + back plate iron Product Size: Approx. 16.7 x 9 x 4 cm / 6.6 x 3.5 x 1.6 in (manual measurement allowable error) Display Mode: LCD screen&nbsp; Current: 20A Voltage: 12V / 24V automatic identification Applicable Solar Panels: 12V is suitable for 18V solar panels, 24V is suitable for 36V solar panels Maximum PV Voltage: 12V battery, up to 23V, 24V battery, up to 46V (up to 50V without load) Maximum PV Input Power: (12V) 260W, (24V) 520W Working Temperature: -20℃ to 55℃ Weight: Approx. 295g / 10.4oz <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Controller1 x Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>