The CoolTube Air Cooled Reflector is a sealed glass tube system designed to manage heat from HID grow lights while containing odors. Compatible with 150w, 250w, 400w, 600w, and 1000w single-ended lamps, it connects to standard 150mm ducting and extraction fans to create a fully airtight cooling solution. Unlike competitors' claims, this system delivers genuine air-tight performance that prevents odor leakage. By drawing hot air directly across the lamp and venting it away from your grow space, the CoolTube removes approximately 80-90% of excess heat—ideal for growers working with limited room. The included pair of detachable external reflectors enhance light distribution and efficiency. Simply attach an extractor fan to either end to pull or push air through the tube, creating a complete climate control setup that keeps plants cool and your environment sealed.