In summer many people struggle to keep their max temps within the safe zone, and this can lead to stress and even death for the plant. Air cooled reflectors allow you to keep your garden growing without the risk of overheating. They work alongside an extractor fan to isolate and remove the heat generated by your lamps. The reflector itself is connected by ducting to the fan which then blows or sucks the heat away and out through the exhaust system. The cooltube model is ideal for smaller spaces or tents. It comes with a 125mm or 150mm ducting flange depending on your needs. The Maxibright Goldstar reflector is for the bigger areas as it generates a larger spread of light than the cool tube.