EI transformer: a) High efficiency b) Low heat generation c) 3 frames or full isolation bobbin EI transformer parameter:Transfer AC voltage of 100V, 110V ... from single to several winding. The size of our EI Transformer from EI-28 to EI-114, capacity up to 150W ... and pin dipping types.Low loss at no-load ,high power output,high efficience,low temperature rise,good safety and reliability,complete ...