... ,4-6A 4. OEM is available Lamp holder E27: 1.E10,E12,E14,E27,E40 series etc 2.Metal: aluminium/iron/copper ... .Professional ManufacturerE27 Porcelain Lampholder with wire:1.Series: E12,E14,E27,E40 etc2. Inserted Metal: aluminium/ iron/ copper/ brass/ stain steel ... with our immediate attention.More models: hot porcelain lamp holder E27 led lamp holder lamp base lamp socket with wire