The 20A 12V/24V Auto Switch&nbsp;PWM Solar Panel Battery Regulator Charge Controller is designed to always keep the battery on fill voltage condition, preventing battery from over-charging, over-discharging and reverse charging. Compared with solar charge controllers that are commonly seen on the market, this&nbsp;PWM controller can increase efficiency by 10%-30%. It can charge and discharge at the same time. What’s more, it has perfect SOC function, supports charge current control and offers power control to the loads. Click and order now!<!--Features --><p>FEATURES</p><UL><LI>Increase efficiency by 10%-30% compared with other solar charge controllers</LI><LI>Can charge and discharge at the same time</LI><LI>Perfect SOC function, control charge current, supply power to the loads</LI><LI>Always keep the battery on fill voltage condition</LI><LI>Prevent the battery from over-charging, over-discharging and reverse charging</LI><LI>Offer reverse polarity protection for the battery and solar panels</LI><LI>Automatically cut off the load from the system when the battery voltage is low</LI><LI>The load will restart working once the battery voltage is back to normal</LI><LI>Built with lightning protection</LI><LI>Automatically set charge-off voltage, load-off voltage and load-restore voltage (Default parameter is under 25→ condition, locked by CPU procedure, cannot adjust)</LI><LI>Automatically compensate the temperature of the charging voltage according to the changes of ambient temperature</LI><LI>Please notice that the controller must be connected to the battery before the solar panel; do not use solar panel supply power to the loads directly</LI></UL><!--Specifications --><p>Specifications</p><TABLE class=ke-zeroborder cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=131>Material</TD><TD width=365>Plastic</TD></TR><TR><TD width=131>Dimensions</TD><TD width=365>(5.24 x 2.74 x 1.38)" / (13.3 x 6.95 x 3.5)cm (L x W x H)</TD></TR><TR><TD width=131>Weight</TD><TD width=365>4.94oz / 140g</TD></TR><TR><TD width=131>Color</TD><TD width=365>Black</TD></TR><TR><TD width=131>Rated Vo1tae</TD><TD width=365>12V / 24V</TD></TR><TR><TD width=131>Max Load Current</TD><TD width=365>20A</TD></TR><TR><TD width=131>Input Voltage Range</TD><TD width=365>12V∥20V/24</TD></TR><TR><TD width=131>Charge Loop Drop</TD><TD width=365>&lt;250mV</TD></TR><TR><TD width=131>Discharge Loop Drop</TD><TD width=365>&lt;50mV</TD></TR><TR><TD width=131>Full Charge Cut</TD><TD width=365>1.37V∥14.4V/27.4V∥28.8V/54.8V∥57.6V (Data Under No Load Condition)</TD></TR><TR><TD width=131>Low Voltage Cut</TD><TD width=365>10.5V∥llV / 21V∥24V</TD></TR><TR><TD width=131>Temperature Compensation</TD><TD width=365>-3mV/→/cell</TD></TR><TR><TD width=131>No Load Loss</TD><TD width=365>●20mV</TD></TR><TR><TD width=131>Efficiency</TD><TD width=365>95%∥97%</TD></TR><TR><TD width=131>Max Wire Area</TD><TD width=365>4쯐2</TD></TR><TR><TD width=131>Ambient Temperature</TD><TD width=365>-25→―55→</TD></TR></TBODY></TABLE><!--Package Includes --><p>Package Includes</p><UL><LI>1 x&nbsp;PWM Solar Charge Controller</LI><LI>1 x User Manual</LI></UL><P>&nbsp;</P><IMG alt="" width=800 height=800 src="http://www.image-tmart.com/info_images/82029491-1.jpg"><IMG alt="" width=800 height=800 src="http://www.image-tmart.com/info_images/82029491-2.jpg"><IMG alt="" width=800 height=800 src="http://www.image-tmart.com/info_images/82029491-3.jpg"><IMG alt="" width=800 height=800 src="http://www.image-tmart.com/info_images/82029491-5.jpg"><IMG alt="" width=800 height=800 src="http://www.image-tmart.com/info_images/82029491-6.jpg"><P>&nbsp;</P><!--Extra Info --><!--produts_compatibility -->