The product needs 4 CR1620 batteries (included in the product), which are exchangeable. When the light is not strong, turn on the LED. The magnifying glasses have the function of eyeglasses. The covers of the glasses could be whirled deliberately when they are not in use. The frame does not need to be plucked, which is convenient to the users. Double glasses covers and double LED are adjusted, which fits to be used with single eye or double eyes. The frame is iron, which could be adjusted.

They are used in the industry of maintenance, industrial electronics, laboratory, medical science or virtu evaluation.