1product name: Porcelain lamp holder
2: Certificate: CE ROHS
3: Best price with good quality.
4. Available size: E14. E17. E27. E40. E39, B22AND SO ON
5; Packing condition: CARTON
6; Material:
Ring: Iron plated copper/. Full copper/ Aluminium plated copper
Contactor: Iron plated copper/ Iron plated nickel/ Full copper
Screw: Iron
7. Terminal: Aluminuim and zinc alloy / copper

Actual photos: