... transformer, cost effective design and good quality3.Used for telephone exchange and LED lamp4.Wire diameter: 1.0mm5.Outer diameter: ... low resistance.6.We have successfully exported to Russia, Malaysia, HK, Czech Republic, America, Australia, Belgium and Singapore and UK ... : -40 °c to +125 °cApplications:Mainly used for telephone exchange and LED, energy saving lamp and PCB mount equipmentBe able ...