Shelf lights are incorporated into bookshelves or display cabinets to provide accent lighting for books, glassware, and collectibles. Switch shelf lights separately from other fixtures in the room so that the lighting is used only when needed, and make sure that the controls are in a convenient location. Check that the bulb is properly concealed to avoid glare from a seated position. A shielding board may be added to conceal the fixture. LEDs are ideal for shelf lighting.