1>.Lampholder 2>.PC boday PBT rotor . 3>.sheet material is phosphor bronze contacts 4>.certifications: VDE,CQC,CE,RoHS Lamp holderYG-A-07 PC body, PBT rotor, phosphor bronze contactsLamp axis:30 mmPackaging: Inner:200 pcs Outer:2000 pcsWt: 7 g MEAS: 43x32x30 cm, Certifications,VDE RoHSCCCCECQC T8 Lampholder