... UL,VDE,CQC,CB,CE certificates Su Zhou Changhe Electronics Co.,LTD is a specialized terminal blocks manufacturer with the whole ... marketing ,which belongs to the Changhe Group(Hong Kong) Co.,LTD ,as one of the production and marketing bases in China ... s mainly used in Illumination,Lighting,LED field including Electronic Transformer,Dimmer,HID Drive,Lighting control system; Security products including ...