Air-cooled reflector is intended to operate at temperatures far cooler than that of conventional reflectors. The unit draws cool air from outside which it then forces into the unit, over the hot lamp. The heated air is the expelled outside the aquarium. This can result in a heat reduction of between 65-75% within the aquarium. This reduction in heat allows delivering more growth light to the tank minus the damaging effects of the associated heat. The reduction in heat also has the added benefit of prolonging lamp life.