I bought this automatic switch for my new 4000W off-grid solar system. It's amazing and smart. Below are the points I summarized after using it for some time. The anger I have is gone because of this device. As we all know, the on-grid solar system is very expensive, and the off-grid system will stop charging the batteries for a period of time on a rainy day, which will spoil my experience. This ATS can solve this problem perfectly. When the batteries run out, it will automatically switch to public electricity (1. protect the battery, 2. the electricity in the house will not be interrupted). When the battery is charged to setpoint, the inverter battery shuts down the house, allowing me to save on my electricity bill each month and only spend a small amount of money on a standalone solar panel. system.B. This product does not come with a cord, so you still need 1. A cord plug to connect to a public outlet. 2. Plug cable to connect to the inverter socket. 3. Connector cable to connect to the load. 4. The wires used to connect to the battery should not be very thick, they are only used to control the battery voltage. The cable from the battery to the inverter must also be connected. For those of us living in the United States, the black line goes to L, the white line goes to N. (I suggest you hire a professional electrician to do all the wiring if you don't have the proper wiring skills) C Please do NOT misunderstand when setting the shutdown voltage and recovery voltage. As the seller reminded, the shutdown voltage should be lower than the recovery voltage. I would like to do handicrafts myself and try out new devices and products. I will follow this seller and keep buying products from him as I think their products and ideas are very good and interesting! When I have free time, I will share my usage experience and discuss it with you. As for the Dual Power Transfer Controller, I would highly recommend it to anyone with a solar array (5 kilowatts or less). 5 stars but wish I could give them more!
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