Hydroponic systems that are under high output lights have to account for the reasonable amount of heat given off by the bulbs.
Exhaust fans control temperature, humidity and fresh air flow into the grow room.
It is an important piece of equipment for growing in an enclosed space. All of our exhaust fans come with a grounded plug and power cord. Just install and plug into atmospheric controller or timer , or plug directly into a wall socket. Air circulation in a grow room is equally important. It builds stem strength in plants, prevents shading and keeps fresh air next to leaves so a pocket of stale, CO2 depleted air does not form around plants.