If you are still operating under non-melanin fluorescent lighting, you are operating at a great disadvantage that is costing you lost productivity and possible health related problems. Fluorescent lighting delivers a lot of light for less energy, making it more efficient... BUT not productivity efficient... since this type of lighting source comes with an on-going series of costly, unwanted problems. Natralite Filters specializes in making your workplace a safe and productive environment. Makes Fluorescent Lighting almost Invisible to Insects! Reduces Photo Synethisis adding to the life of Fresh Foods! Lenses for your Eyeglass Frames avaiable seperately!