... : 1. Copper, Aluminum, Aluminum Clad Copper. 2. The size of transformer total in Aluminum is larger than which total in Copper ... C. Certification: ISO9001, CESI, UL, CE, RoHS and SGS. D. Testing Items: 1. No-load Test(No-load Current, No-load ... Illumination System 7. Security Monitor & Control System 8. Comparison on Transformer with Toroidal, EI, R, CD Shape CoreF. Label Info: Certificate ...