How to Choose the Models of Hanfong Solar Charge Controller?

How to choose the right model on lots of solar controller models? In a general way, basically to consider the bigger one between the ratio of solar panels power and the battery voltage with the ratio of load power and the battery voltage. For example, the load power is 60w, panels is 100w, battery voltage is 12v, 60w/12v=5A, 100W/12V=8.333A.So, to choose 12v 10A solar controller is the best.

Of course, you also need other functions, that is going to tell your demand. You can choose the utility complementary controller when the battery without electricity but you have to stay in work. You can choose the controller taking half power  when you need the light in full power before 5 hours, but the half power later. You can choose double time frame controller when you need the controller working from the black to 0'clock, and at 4 am. to the morning. You can choose dual controller when you want the system has two load power.

If you can't make a decision, you can seek professional technical service solution on Hanfong. Postbox is: market@hanfong.net Welcome your letters.