The brightest lights usually lead to the best results from your plants, but doing grow room checks when you have your systems on can be a nightmare. Due to the intensity of HID lamps, you'll find yourself blurry eyed, unless they are protected.
These lenses are designed to let you view your crop in more natural light as they reduce the glare from HID and CFL grow lamps.As well as protecting your eyes, they make identifying pests and diseases easier, without having to turn off your grow lights. They have a blue lens that corrects the orange hue of sodium lamps this makes the sodium-lit grow room appear as if it is in daylight.