... ,Middles East,Africa and so on.3.Products series:1.porcelain lamp holder:E10,E12,E14,E26,E27,E39,E40,B22 etc ... /bakelite:E14,E26,E27,B22 etc4.metal lamp holder:E10,E12,E14,E27,B22 etc5.porcelain conector:1way,2ways,3ways(5,10A ... ,15A,20A,30A)6.lamp holder accessories:pedant lamp holder,cable strain ...