Install the left and right magnifying eye cups with LEDs on the lens holder. Each eye cup is equipped with 4 lens barrels with different magnifications. It is recommended to choose a lens barrel with appropriate magnification according to the size of the object to be observed. If you use the magnifying glass for a long time, you can use the two lens barrels alternately to eliminate visual fatigue and improve work efficiency. Ideal for jewelry, watchmakers, circuit boards and electronics, connoisseurs of coins and stamps, etc. Practical and durable, materials, long service life. Magnification type: LED luminous magnifying glass, watch repair magnifying glass, jewelry magnifying glass 2. The LED light source is designed separately from the battery compartment. (1) The LED lamp holder is designed separately from the battery compartment of the control switch, which is convenient for stabilizing the illumination point of the light source during operation, and there is no need to readjust the illumination point for repeated use. (2) The switch operation is quite simple. From the point to the light mark, turn the battery cover clockwise about 40 degrees to turn on the LED light source turn the battery cover counterclockwise to turn off the light source. (3) It is convenient to replace the battery. Press down on the battery cover and turn it counterclockwise about 30 degrees to make the switch battery cover pops out automatically. Take out three old LR1130 batteries and put in three new LR1130 batteries, making sure that the negative pole of the battery faces inward. 3. The bracket and headband can be interchanged. For ordinary stent type eyecup magnifiers, since the LED light source on the eyecup is relatively heavy, the eyecup is easy to fall off during use. This product is additionally equipped with interchangeable headbands, which can effectively solve problems such asMagnification type: LED luminous magnifying glass, watch repair magnifying glass, jewelry magnifying glass. Practical and durable, materials, long service life. Ideal for jewelry, watchmakers, circuit boards and electronics, connoisseurs of coins and stamps, etc. If you use the magnifying glass for a long time, you can use the two lens barrels alternately to eliminate visual fatigue and improve work efficiency. Install the left and right magnifying eye cups with LEDs on the lens holder. Each eye cup is equipped with 4 lens barrels with different magnifications. It is recommended to choose a lens barrel with appropriate magnification according to the size of the object to be observed.