This MetaBright™ 4" O.D. (2" I.D.) high power near axis ring light provides extreme intensity lighting for working distance of 4" and longer. Our ring lights can be configured for wavelength and other specifications. Exclusive prealignment process aims and then thermally pots each LED for the brightest, most uniform and longest lifetime ring lights available Metaphase ringlights are the lowest cost simplest form of LED ring camera lighting for standard intensity ring illumination needs