Grow Giant has the best grow light reflector hoods on the market, so if you are shopping for a high quality reflector, you have come to the right place. Our massive selection of the highest quality hoods are available in many sizes. All types of growers, including smaller beginners to larger professional grade reflectors are here. The most popular types of grow light reflector hoods are “air cooled” and “open air” systems. The air cooled reflectors are typically sealed with glass to allow air movement through the hood to cool the bulb. Open air reflectors are typically the umbrella style or wing reflectors and are a cheaper alternative to air cooled reflectors.