Our exclusive halo shade, encloses our 5? lens. This translucent shade allows light through, helping your eyes over long term use. Reduced contrast minimizes eye fatigue. Available in 3 diopter (1.75X) only, the 3 diopter add-on lens (#14015) snaps in for increased magnifications (2.5X). Standard reaches include our industrial deluxe version of Ultraflex 43? long arms and our Prolite line of arms, available in 25?, 37?, 45? long, in a variety of bases. A 22 watt cool white bulb provides diffused, soft lighting. Standard light grey or black hard coat finish, other colors available. Easy movements, long life, easy to maintain. 10 year mechanical arm warranty. An O.C. White exclusive.