The Eschenbach Mobilux LED Handheld Magnifier is an illuminated handheld magnifier that features bright LED illumination. SMD LED (light emitting diode) illumination provides an alternative light source preferred by many patients due to its distinctly whiter spectrum and longer useful life. This state of the art magnifier includes the Eschenbach Mobase Stand that turns your Mobilux magnifier to a hands free magnifier with ease by inserting the Mobilux magnifier into the Mobase stand. The Eschenbach Mobase Stand has two positions to choose from: the upright position allows for hands-free work behind the lens, such as threading a needle or filing nails. When used in the flat position, users can easily slide their Mobilux handheld magnifier over the reading material. The Eschenbach Mobilux LED Handheld Magnifier comes in 3x or 4x magnification. The diopter for the 3x magnification is 12D and the diopter for the 4x magnification is 16D. The Eschenbach Mobilux LED Handheld Magnifier features a comfortable, ergonomic handle with a large, easy to operate ON/OFF light switch, a battery compartment that uses high quality springs that makes changing the batteries easier (2 AA batteries included) and a slip-on protective case..Specs:Magnification: 3x/4xDiopter: 12D/16DIllumination: SMD LED Lens Type: Aspheric Lens Material:Optical Grade PlasticLens Size: 2.36 in (60mm)Warranty: Limited Lifetime Warranty from EschenbachPURCHASE INCLUDES: (1) Eschenbach Mobilux LED Handheld Magnifier, (1) Eschenbach Mobase Stand, (3) Snap-on Filters, (1) Eschenbach Mobilux Protective Case, (1) Liberty Microfiber Cloth, & Eschenbach's Limited Lifetime Warranty