... :copper, aluminum,iron or zinc alloy E40 porcelain lamp holder, porcelain lampholder, lamp base, lamp socket(FOR AUSTRALIA MARKET)1)product name Porcelain lampholder ... ) certificateCE, ROHS.3) voltage250V-750VElectric current4A-16A4)main materialHigh pressure & ceramic, common ceramic, porcelain5) metalCopper, iron, aluminum6) sizeAs your requested7) available wire0 ...