Mektronic Engg. Co. Offers Fibre Optic Light Cable. Mektronic Engg. Co also manufactures various types of medical and surgical instruments. The Fibre Optic Light Cable, Model FOC-3, finds an application in Laproscopy. The Fibre Optic Light Cable is protected with metal cladding to prevent breakage of fiber. The Fibre Optic Light Cable has cable diameter of 4.8mm and length of 180cm, 200cm, 230cm and 250cm. The Fibre Optic Light Cable is fully auto-clavable.