1) Square land magnifier 2) Height adjustable 3) 3, 5, 8 ... 4) Optical high-definition Height adjustable optical high-definition square land magnifier with lamp SUMMARIZEMagnifier series are LT-86A, ... : can protect the over current flow in abnormal circumstance7. Lens: Type D is Φ90mm plus Φ12mm; Type F,G ... ,I are 177×113mm rectangle lens; A, B, C, E is Φ127mm round lens.USAGE SCOPEMagnifier series can be ...