Yield Lab Air Cool Tube ReflectorThe Yield Lab Air Cooled Tube Reflector is a favorite among growers because of its compact size, light coverage, and air cooled design. Whether you're running a single cool tube or many at the same time, all you need is some ducting and a couple of fans to cool your light and help prevent excess heat throughout your garden. Despite its size, the cool tube's reflective surface and glass design give your 1000w, 600w, or 400w bulbs a wide coverage area