An item of utmost importance in any sandcarving cabinet is a light source, which allows you to see in spite of the dust storm that takes place. In early commercial blasting cabinets, you only found fixed fluorescent tubes. Those are the worst possible choice for light when dealing with sandcarving glass. Fluorescent lights illuminate everything uniformly and do not allow you to see highlights and shows as you carve a glass piece, thus making it impossible to judge the depth you have achieved. We use magnetic lights with a flexible goose neck, which allows us to change the light position at any time and bend it to the exact angle needed when doing elaborate art pieces. These lights can accommodate regular light bulbs or Halogen lights, whichever you prefer. Some cabinets have fixed light sources.
—Ruth Dobbins, Professional Glass Consultants