1.good design,high quality and long usage life 2.durable product ,bakelite ,copper conductor 3.have gained CCC,CE,ISO9001 1.lampholder2.durable product ,bakelite ,copper conductor3.good design,high quality and long usage life.4.easy installation,Simple Operation.5.outer packing :600pcs/ctns6.Material plate bakelite wire copper7.Have gained CCC ,CE,ISO9001 certification e27 lampholder