Last year I was planning to set up three solar panels, and bought three controllers. Turned out that in our townhouse I could not do that, so it never happened. Now I have those three solar panel controllers for sale. #1 is 10 amps, #2 is 20 amps #3 is 30 amps. The 10 amps will be $25, and the 20 and 30 amps $30 each. The total for all three is $85, but if you buy them at the same time to total will be $75. These are brand new, never used solar controllers.