The combined usage ratios are:2X,2+4=6X,2+6=8X,2+10=12X,2+22=24X Product light source :2 LED lights;Power supply method: 2 CR1620 button batteries on each side (4 batteries in total for one product), comes with batteries at the factory Product light source :2 LED lights;Power supply method: 2 CR1620 button batteries on each side (4 batteries in total for one product), comes with batteries at the factory Name: 24x Head-mounted Magnifying Glass;Material :ABS, acrylic lens;The unfolded size is 190X142X45mm;Folding size :142X45X40mm; Lens magnification: 2x, 4x, 6x, 10x, 22x (5 groups of different magnification lenses) The product lens contains a 2x lens (non-detachable). Specially designed to support delicate electronic work, such as PCB soldering, component inspection, and circuit board repair. The combination of magnification and LED lighting helps you clearly see fine details and solder joints., Weight: 0.44753839186 pounds, Manufacturer: Uxsjakjsd