Sounds like you are on the right track. I know you will but keep a close watch on the Hydrofarm. Plenty of owners here have them and they work well enough. I was an unlucky one and the one and only I bought failed in the first couple months. It failed in the on position but I caught it just after it started to fail so Im not sure what would have happened as I didn't give it a chance. After that I quit suggesting them and only recommend Herpstat now.