... . Competitive Price 4. Quality Approvals 5. Prompt Delivery 1)Porcelain E27,E40,B22,E14,E17,E12,E26,E392)Material: ceramic/porcelain/Steatite ... of B/L or 100% irrevocable L/C at sight B22 porcelain lamp socketCertificationCE/ROHSTest StandardROHS—EC Directive 2002/95/ECStyleEdison ... factory, welcome to visit our factory. HOT porcelain lamp holder B22