El Wire Sizes - Fiber Optic Products Inc. El Wire Sizes. Refine Search. 1mm EL Wire. 2mm EL w/Tail. 2mm EL Wire. 3mm El Wire. 5mm EL Wire. EL Wire Detail Information - That's Cool Wire Important Considerations. Electroluminescent wire (EL) is a wire that produces light through Electroluminescent when an alternating current is passed through it. It produces a 360-degree unbroken line of visible light. Because of its thin diameter is flexible and is Electrical Wire Sizing Chart - Home Quicks Dn = 0 mm × 92 ( ( 36 – n) ÷ 39) n = -39 log 92 (Dn ÷ 0 inch) + 36 = -39log 92 (Dn ÷ 0 mm) + 36. Apart from the above formula, you can use the following steps for any voltage or voltage drop. It can also be used for American (AWG) or metric (mm 2) sizing.