Material: Uses high-quality ABS material, a metal, and a high-transmittance glass lens for a long lifespan. Portable magnifying glass with 10x magnification and adjustable alligator clips. Product Size: 200 x 100 x 175 mm, large lens diameter = 90 mm = 3.5 inches. Main lens: 2.5x zoom. Lens with condenser: 1.34 inches (34 mm): 7.5x zoom. LED lights: 5 lights. Voltage input: 100-250V, 50/60Hz. Third Hand Welding: Useful aid and a third hand for welding work or model making. Suitable for inspection and repair of welding work, electronic industry operations, processing, installation and repair, appreciation of sculpture and art, cameras, watches, and more. External Power Supply: External power supply; with an external power supply, the integrated battery is automatically disconnected. 50/60Hz, DC 4.8V 500MA output, magnification: 2.5x + 7.5x / 10x. Note: Two alligator clips support 90g. Do not place heavy objects. When in use, the magnifying glass should not be folded too much, as it can easily tilt and become unstable.