ExpertPower 20A 12/24V 240/480W Intelligent PWM Solar Charge Controller with Adjustable Timer Control Mode， USB Ports， and LCD Display<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Adjustable Timer Control Mode: Three options you can adjust the time period of battery discharge. Prevent unnecessarily draining battery and intelligent discharging battery for your devices or appliances.</li><li>LCD Display: readable monitor displays parameters of voltage， hours， adjustable mode， etc. Easy to use and operate you whole system.</li><li>Protable USB dual ports with output 5V/3A designated to charge electronic device or appliance; the controller is automatically adapted to 12V/24V battery system.</li><li>PWM technology &amp; Electronic Protection: Short Circuit Protection， Overload Protection， and Reverse Polarity Protection; Low Voltage Disconnection Setting， Low Voltage Discharge Reconnection Setting</li><li>Reverse Current Protection by dual MOSFET. Configuration: AGM， GEL， and other types of lead acid battery. Good Heat Dissipation with specific design. Indoor use only.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41HC3L219XL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41zcNFRmDwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31EOkJ9cCGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51htM0RWHiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Jk8m6GJTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/318kmDK5nxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51L%2BGhA6kIL.jpg" noproxy>