Simply hook the Easy Hangers on an appropriate fixture, fasten the nylon suspension cord to the hanging brackets on the reflector, adjust to the require height and then slowly tighten the butterfly clamp until it just takes the weight of the reflector, you can then simply raise and lower the reflector at will. These are great for easy access to check your plants or for fast growing plants that need regular height adjustments. Use two easy hangers for each reflector to achieve a level position