Built-in 8 White-light LED and adjustable illumination ensure the magnified images are clear and bright * Focus Range 0mm ~ 40mm * Magnification Range 20X ~ 800X (Manually),with Vertical Lifting Stander * Operation System Windows XP, Vista, Win 7 32 bit and 64 bit * Resolution1280*960,1600*1200,800*600,640*480, 320*240