okay I have 2 150w heaters and I have no idea how to use these things. As in I dont know what way to turn them to lower or raise the temp. heres a couple pics of what they look like. I know they have a temp mark but I cant see the line as to where it goes to show what temp i have them set at. do you turn the red thing clock wise to raise it and counter clock to lower the temp? or turn it to the right to raise it and left to lower it?
