material: porcelain outer body
inner component : screw shell of iron or copper .
payment term: 30% TT first and balance within 5 days before shipment .
we produce lampholder of many model , such as E40 , E27 .E26 , E12 ,E39 .E14,
We've got the VDE CE, UL ,EK SAA,CQC certification for the porcelain lampholder