When a bulb flickers and goes out, you know it's time to change it. Basic lighting maintenance is supposed to be easy, but something as simple as changing a light bulb can be frustrating if you have a lamp shade holder that isn't doing its job correctly. The last thing you want is an old or faulty product that could cause damage to your lighting fixture. If you are not sure which shade holder is best for your shade(s), be sure to click on the "How To" tutorial: How To Choose a Replacement Glass Lampshade for advice on understanding shade holder fitter sizes and applications.