Professional Custom Lamp Holder Accessories Manufacturer

Lampholders, which includes three parts of the ferrule, intubation, the inner core, to make mortise inner core and intubation through mechanical principles seal, so as to achieve a leakage current of less than 0.5mA potential is less than 21.1V and preventionrainwater from entering the porcelain lamp holders and conductive caused by phenomena such as wounding and fire, while adapting to American UL safety test center proposed to be effective January 1, 1997 implementation of the new standard of UL.