... FORWARD INVERTER, RESONANT , PUSH-PULL WAY,.APPLYING FOR TYPICAL TRANSFORMER CONSTRUCTION. * EI,EE,EF CORE TRANSFORMERS HAVE A SIMPLE CONSTRUCTION,LOW MANUFACTURE ... CORE TRANSFORMER INCLUDE EI-16,EI-19,EI- 25, EI-28,EI-33,EI-35,EI-40 ETC. * POSSESSING OF HIGH PERMEABILITY,HIGH SATURATION FLUX DENSITY * LOW POWER LOSS ... TO 95%RH * STORAGE HUMIDITY 30 TO 95%RH EE Type Power Transformer