New warmer light color (3500K), ideal for certain medical device applications! High-Intensity, ESD safe, dimmable ring light will fit almost any microscope. Dims from 5-100% without need of an external controller. Uses only 8W at highest intensity, comparable to a 150W halogen. Auto switch 100-240V (50/60Hz) with worldwide approvals. Slim shade with no desktop control box. 5 year/50,00 hour warranty. White.