This lamp has a long reach spring balanced arm for domestic and industrial applications including jewellers, dressmakers, beauticians and other crafts where light and magnification is a necessity. Magnification is via a 125mm diameter dioptrex lens (3 dioptre) with 1.75 times magnification. The 3-position hinged arm can be locked in any one or all three positions. Supplied complete with desk clamp, mini round 16W daylight tube and fitted UK plug.