I say ditch the lights all together, if your house is unnaturally cold you can get a CHE bulb instead of the light bulb and use that on a lamp dimmer ($10 from Home Depot). Get a UTH and that hydrofarm thermostat. And get this
http://www.amazon.com/Chaney-Instrum...0843485&sr=8-1
and/or this
http://tempgun.com/