1.product name: E27F519PW porcelain lamp holder
2: Certificate: CE ROHS
3. Available size: E14. E17. E27. E40. E39, B22AND SO ON
4; Packing condition: CARTON
5; Material:
Ring: Iron plated copper/Full copper/Aluminium plated copper
Contactor: Iron plated copper/Iron plated nickel/Full copper
Screw: Iron
6. Terminal: Aluminuim and zinc alloy / copper

We can provide different kind of lamp holders

Actual photos: