Grow light hangers are the means for hanging your grow lights in your grow tent, grow room, or greenhouse. Grow lights need to be adjusted in height throughout the life of the plant. To provide ample lighting without burning the plants, grow lights need to be hung within the optimal range, which will depend on the type of lighting you employ. There are a number of ways to hang grow lights, such as using chains, but the simplest method is using adjustable grow light hangers. These allow you to quickly adjust the height of your grow lights, ballasts, reflectors, and even carbon filters.