Littlite CC series task lights use a constant current circuitry enabling a wider range of input voltage (8-28vdc), smoother LED dimming with no digital artifacts and more efficient operation.  The CC series is a dedicated single LED lamp controller. Selected Littlite LED products are now listed by Underwriters Laboratories Inc. "Littlite LED UL Product List" *Please note that MV-LED and CC series lights do not switch between white and red light output.