... : 1. Copper, Aluminum, Aluminum Clad Copper. 2. The size of transformer total in Aluminum is larger than which total in Copper ... . 3. Aluminum instead of Copper Cost Save: 13%-35%/PC C. Certification: ISO9001, CESI, UL, CE, RoHS and SGS ... Equipment 5. New Electric Power Supply 6. Decorative Illumination System 7. Security Monitor & Control System 8. Comparison on Transformer with Toroidal, EI ...