The Daystar AC is the answer for those wanting high performance coupled with maximum air cooling potential. Utilizing the same patented double wall design and reflective material as our flagship Daystar unit, the "AC" adds two 6" built-on flanges for cooling air flow from an optional fan. The 6" diameter encompasses most of the tunnel-like interior ensuring more complete air flow than common air cooled units. This combination allows for closer plant placement plus better growth, and improved ability to control growing area temperatures.