HID Ballast EI Lamination Specifications HID-96 series (width: 96mm) HID-75 series ... 75 series (width: 75mm), HID-60 series (width: 60mm) EI-60F-GAP 0.55, 0.7, 0.8, 0.9 ... 5, 1.6, 1.8, 1.95, 2.35mm EI-75H-GAP 1.25, 1.3, 1.6, 1.8 ... .1, 2.0, 2.2, 2.4, 2.75mm EI-96H-GAP 2.0, 2.2, 3.3mm2) Materials ( ... , 50AW1000, 50AW800, 50AW600, 50AW470e) Imported silicon steel coil stocks. EI Lamination (electrical product)