Hey guys, so living here in So.Cal. and doing astronomy in the desert at places like Anza, Joshua Tree, Mt. Laguna, Mt. Pinos, etc. I've never had a dew issue, however now that I'm playing around and practicing astrophotography from my driveway in coastal Orange County (Irvine) I'm getting dew on my refractor and guidescope objectives .. so I'm thinking of getting a couple Astrozap heater strips .. but do I really need a controller? I'll just be plugging everything into a garage AC outlet via a DC/AC converter .. so I'm not concerned with power drain .. but is there anything else I should be wary of like the strips creating heat currents that might degrade image quality? Astrozap sells the kit thats just a female RCA jack on one end and cigarette lighter plug on the other, plus they give you an RCA splitter cable so you can run two strips .. I'm thinking of just getting that as again its only really when I'm at home during peak winter months that dew is even an issue .. bad idea? Yay or Nay? Thanks for any advice.