Aspheric Lens in different powers+16D, +20D, +24D, +28D mounted in a handheld stand provides direct illumination on material to be read. It operates on ?AA? batteries.
Aspheric Lens in different powers+16D, +20D, +24D, +28D mounted in a handheld stand provides direct illumination on material to be read. It operates on ?AA? batteries.
