Head Mounted Magnifying Glass With Interchangeable Lens

Features: 5 Replaceable/Interconvertible lens with different magnifications marked in the middle LED light can be rotated about 60 degree and light source box with battery compartment is detachable Adjustable head band ensures more comfortable and tight head wearing Light source box can be used separately as lighting source after being dismantled Widely used in mechanical processing, electronic repair, jewelry appraisal, timepieces repair and miniature engraving, etc. Specifications: lens magnifications: 1.0x, 1.5x, 2.0x, 2.5, 3.5x. Table below denotes the distance proportion between magnifications and viewed abjects: Magnifications Distance to viewed objects 1.0x 300-350mm 1.5% 240-260mm 2.0x 215-235mm 2.5x205-225mm 3.5x135-145mm