A common magnifying glass is generally composed of a lens and a simple frame. This kind of magnifying glass can be used under normal conditions, but it will show its inadequacy if it encounters dark light, or if the observed object details require sufficient light. At this time, an extra light source is needed to illuminate. A flashlight is a good choice, but if there is no such tool at hand? At this time, if there is a hand-held illuminated magnifying glass, this problem can be solved. After all, a hand-held illuminated magnifying glass is much more convenient than a magnifying glass and a flashlight.