The Industry’s Only AC Fan Cord That is Thermostatically Controlled. This Patent Pending design is revolutionary to the AC fan industry. Designed to simply replace your current fan cord, no additional wiring, circuit boards, controls boxes, or design changes are required. The GardTec INC. Green Fan Power Cord will automatically turn your AC cooling fan on when the system heat rises, then turn it off when the system heat drops, allowing the fan to run only during those times when the system calls for additional cooling. Save energy, costs, reduce fan generated noise and increase product life. Easy Installation, Plug in the Fan and Go, Controlling the internal ambient temperature of applications is critical to the proper functioning and life expectancy. The most cost effective method in controlling ambient temperatures is thermal management of forced air cooling. The maximum recommended ambient operating temperature of typical equipment is considered to be 85-88 degrees F. As ambient temperatures increase due to system usage, circuit component life is reduced by up to 45% for each additional 10-12 degree rise in ambient temperature. Product performance, service, life and reliability are in direct relation to ambient temperatures.