These were difficult to find, but worth it. This light ring is bright, and adjustable so you can tweak your brightness switching between shiny stencils and dark boards without killing your eyes. The market in China has dropped these awesome light rings in favor of cheap fluorescent rings which burn your hands several times a day, or "newer" thick white LED rings that chop your working distance because they sit lower. This product is worth going the extra mile to source it for you.