1. First, what is the voltage at the load output of the controller?
The voltage at the load output terminal of the controller is close to the voltage of the battery, and there is a MOS tube in the middle as the controller switch. There is no voltage regulator inside. Some customers think that the voltage at the output terminal of the load is a stable 12V or 24V. That is wrong, as the voltage of the battery changes, the voltage at the output terminal also changes. Therefore, if the customer's load operating voltage requires precise 12V or 24V, the controller cannot meet the requirements.

2. Can any type of load be connected to the load output of the solar controller?
We know that the output current of the load output terminal of the controller is regulated, generally divided into 10A, 20A... If the voltage exceeds this voltage, the controller will activate the overload protection function and stop the output in order to protect it from damage. Therefore, for resistive loads, the working current can be calculated. Dividing the power by the working voltage, it is enough to be less than the rated current of the controller, such as light bulbs, chargers, etc... But if the customer is a capacitive load, such as Electric motors, motors, energy-saving lamps... These kinds of electrical appliances will generate a large current instantaneously when they are started, which can even reach 3-5 times of normal operation. This will easily lead to overloading of the output current of the controller load, resulting in the overload protection of the controller, the load will stop working, and even damage the controller.