... (burn-in test) Product image: Features: 1.E17 fire-proof PBT lamp socket2.CE&RoHS,VDE,UL approved 3.4A ... temperature resistantFunctional characteristics: Product ModelIL-SO-E17(LH)lamp baseE17MaterialsFire-proof PBT + Silicon cableStyleSrew inCertificate CE & RoHS,VDE,ULGuarantee2 yearsWhy ... (laser customer's LOGO) E17 lamp socket aging test fire-proof PBT,E17 burn-in test lamp socket,E17 lamp base