Twin Coolshade ReflectorTWIN COOLSHADE REFLECTOR The Coolshade Twin reflector is an effective way of keeping your grow room temperatures down. The patented tubular design is the same as the Coolshade but has the advantage of adding two bulbs to double your light output. Air is blown through the coolshade, directly cooling the lamp and removing hot air from inside. Thus, the glass of the cool tube only gets warm, meaning your reflector can be placed closer to your plants