Fast Shipping On All Items 30 Days Money Guarantee Customer Support Excellent Service 100% Satisfaction Satisfaction Guaranteed 50A 5500 Watt ATS Dual Power Controller for off Grid Solar Wind Systems DC 12V 24V 48V AC 110V 220V Specification Item model number LD-094 Color White Product Dimensions 5 x 4 x 3 inches Country of Origin China Item Weight 3.1 pounds Manufacturer Luke Directly 4.0 inches x 5.0 inches x 3.0 inches. Weight: 3.1 lb Item Description AUTO-SWITCHING: When your batteries voltage are lower than cut off point, the solar transfer switch will automatically switch to grid power, protect your battery. And it will switch back to battery power when the batteries voltage are higher than recovery point. It allows for unattended management, which is very convenient and time-saving PEACE OF MIND: When you are out on vacation, never worry about draining your batteries due to lack of sunlight or wind. The ATS monitors the battery voltage in real time, it will switch to the grid power in time, greatly prolonging the battery life and keeping your appliances running 24/7 FAST TRANSFER TIME: ?25ms, 5.5kw(110V) or 11KW(220v) big power. It can immediately switch between two power supplies with almost no downtime. So the main appliances in your home will not lose power between switches and your normal life will not be affected at all FAST TRANSFER TIME: ?25ms, 5.5kw(110V) or 11KW(220v) big power. It can immediately switch between two power supplies with almost no downtime. So the main appliances in your home will not lose power between switches and your normal life will not be affected at all AUTO DISTINGUISH: Automatically identifies the system voltage: DC 12/24/48V, AC 100-120V 60HZ / 220-240V 50HZ. Suitable for sealed, gel, lead-acid, lithium batteries etc. As long as the battery voltage is within the following voltage ranges: 9-17V at 12V system;18-30V at 24V system; 30-60V at 48V system Product Description Briidea automatic transfer switch allows you to customize the cut-off voltage and recovery voltage, it can automatically switch between grid power and battery power, without you manually switch, fast switching time, does not affect the use of your device, extends battery life, and can save you a lot of time and money, give you peace of mind 2 USB Ports Provide 2 USB ports (5V), you can use to charge flashlight, or other small devices, more convenient Faster Switching Tim ?25ms, the switch allows for uninterrupted switching from solar/wind power to grid without disturbing the appliances Save Your Time and Money No need to manually switch, the switch can automatically switch between the two power supplies, saving you a lot of time and electricity Extend Battery Life The ATS monitors the battery voltage in real time, it will switch to the grid power in time, greatly prolonging the battery life Peace of Mind When you are out on vacation, never worry about draining your batteries due to lack of sunlight or wind 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