Types of lamp socket 1.E10/E11/E12/E14/E27/E26/E40/E39/B22 ... Porcelain,Bakelite, Plastic etc. 3.CE,RoHS Types of lamp socket , E27 Lamp Holder Socket Types We manufacture various types of ... lamp holder,E10, E11, E12, E14, E17, E27/E26, E39 ... standard light bulbs660W 250V lampholder ratingTwist lock mounting with 3-1/4" or 4" hole spacingPacking: each unit in a ...