Graphic Impressions COB Magnifier is a hand-held Magnifier with built-in COB LED light for low-light conditions. Lens size is approximately 3.5 inch wide and offers 5x magnification. Assorted colors are purple, green, blue, red, and orange.
So if you're like me than you've never even heard of a COB LED, much less know why you'd prefer it. When I saw these I had to do a little research about this special little light. Turns out COB stands for Chip-on-board, basically multiple LED chips bonded to a single substrate, which allows them to be grouped much closer together than we're used to. This results in a light that looks more like a light panel than a grouping of individual LED lights.
So how is this helpful? Being multi-chip packaged, the light emitting area of a COB LED can contain many times more light sources in the same area that standard LEDs could occupy resulting in a greatly increased lumen output per square inch. Light loss is decreased significantly and viewing angle is increased both due to the fact that lenses and other traditional LED packaging parts are no longer in place when using COB LEDs. This means less glare and less strain on your eyes. It also means less heat is emitted from each light.
All of these things combined make this pretty much the best lighted magnifier on the market. Keep your quilting high-tech with this great new tool!
It uses 2 AA batteries which are included.