Fast Shipping On All Items 30 Days Money Guarantee Customer Support Excellent Service 100% Satisfaction Satisfaction Guaranteed 40 Amp Solar Charge Controller, 12V/24V DC Input MPPT Solar Charge Controller, Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground Specification Style 40A MPPT Country of Origin China Item Weight 2.5 pounds Manufacturer PRECIHW Package Dimensions 7.7 x 5.9 x 2.6 inches Included Components / 5.9 inches x 7.7 inches x 2.6 inches. Weight: 2.5 lb Item Description ?Wide Application?Compatible with various battery options: Deep-cycle sealed (AGM), Gel, Flooded, and Lithium. ?12V/24V? Automatically detects 12V or 24V DC system voltages. Innovative MPPT technology with tracking efficiency up to 99.9% and peak conversion efficiency up to 98.0%. ?Extremely Safe?The controller has built-in protection for Reverse Connection, Overpower, Overvoltage, Short-circuit, Over-temperature, which provides safety protection for the whole solar system. Also equipped with an LCD display screen, you can view important data, making the mppt solar controller more convenient for users to monitor and adjust the device's operational status. ?LCD Display? This Solar Controller is with multifunctional LCD and communication ports for remote battery temperature and voltage measurement. With an LCD screen and 2 buttons, it?s convenient for a dynamic display of system data and operating status. Could be widely used for various applications, e.g. solar RV, solar household system etc. ?Convenient Built-in Bluetooth Module?Our 12/24V 40A MPPT solar charge controller is equipped with an RS485/Bluetooth communication port for connecting a Bluetooth adapter to the RJ11 port, which allows users to remotely monitor the real-time status of solar panels, batteries and loads, and the built-in Bluetooth module makes operation even easier. Product Description 12V/24V System Voltage Automatic Identify Due to variations in temperature the sensor compensates absorption and float voltages for optimum charging. Die-cast aluminum design ensures excellent heat dissipation and maximum charging efficiency. Excellent EMC design and comprehensive electronic protection. Return Policy ? We guarantee against any defective or misrepresented products. The original shipping label must be sent back to us to validate the return. A full refund can only be issued during the first 30 days upon receipt of the product. ? Returns will be voided if the product is mishandled or physical damaged by customer. ? Buyer will be responsible for all kind of return shipping/shipment to the seller for resolving the problem. ? Returns made for all non-defective, undamaged products are subject to a 15% restocking fee. Shipping and handling fees are absolutely non-refundable. If an item is returned to us due to an address issue, we do charge a reshipping fee to reship. If you would like a refund, there will be a 15% restocking fee applied. ? All returned products need to be assigned an RMA # (Return Merchandise Authorization #) prior to return. Please contact us through's messaging system to obtain an RMA# for the return. Any returned product without an RMA # on package will not be accepted or processed. ? Please contact us before returning. Feedback ? We appreciate your feedback and our system will automatically leave feedback for you after bid ends. ? Please contact us through message center if you have any problems, we will always try our best for 100% customer satisfaction. Payment Options Shop With Confidence