... a kind of parts used in different power supply 2.high qulity switching power supply adapter pcb 1. This product and other ... need other power power adapter, please provide line museum parameters, we will comply with your request to produce Universal Toroidal Power Transformers 25VA- ... 506, UL 1411,IEC61558,EN61558 and EN 60950Insulation classClass B,130°CPrimary to core1/2 overlap of 2 layer insulation ...