Littlite LED-3-UV lights feature a 365 nm UV LED along with a white LED and a red LED. The light can be switched from UV mode to white or red mode making the light perfect for checking security watermarks on currency, ID cards and credit cards and doubling as a standard task light to illuminate reading materials, cash registers, etc. Littlite LED-3-UV models do not have a built-in dimmer. The TDM touch dimmer can be inserted between the lampset and Littlite power supply to add dimming functionality. Littlite IS Models have a bottom mount power cord for a clean appearance when surface mounted.