1) Square clamp magnifier 2) Height adjustable 3) 3, 5, 8, 10, 15, ... 4) Optical high-definition Height adjustable optical high-definition square clamp magnifier with lamp SUMMARIZEMagnifier series are LT-86A,LT-86B ... D), 14W(2×7W)U shape fluorescent lamp (Type F, G, H, I) , 22W(A, B, C, E). Its active ... circumstance7. Lens: Type D is Φ90mm plus Φ12mm; Type F,G,H,I are 177×113mm rectangle lens; A, B, C ...