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This solar panel charger does what it promises for a really good price. The 50A version i bought is bigger than other charger of this kind (see photo of comparison with USB Solar Panel Battery Regulator Charge Intelligent Controller 12/24V - 30A / https://www.banggood.com/102030A-USB-Solar-Panel-Battery-Regulator-Charge-Intelligent-Controller-1224V-p-1143533.html?p=P828165195951201606J). I do like its bigger LCD display that gives all needed information at a glance! I tested it and found out that values that g displays are precise and floating charging voltage is adjusted right for battery type selected ... After testing i connected it in my solar panel installation (see the photo) as it is much better that the previous one i used. I have to say also that shipping and delivery was fast as usually with Banggood ! NOTE: In last photography the charger is connected and working in my DIY solar panel installation together with Excellway® 20A DC Multifunction Digital Power Meter Energy Monitor Module Volt Meter Ammeter / https://www.banggood.com/20A-DC-Digital-Multifunction-Power-Meter-Energy-Monitor-Module-Voltmeter-Ammeter-6_5V-100V-p-996111.html?p=P828165195951201606J
Request 89953555 (solar charge controller) has arrived! But this request has been changed! I ordered a 50A solar charge controller, but a 40A solar charge controller arrived, as shown in the attached photo! I'm asking you to send me a solar charge controller of 50A, so I can switch. Regards.