1.The socket is made by plastic with copper pin 2.The dielectric intensity is high 3.free samples 4.approved by CE ROHS UL Details of our power sockets :temperature:-40~85.crating:10A 250V ACContact Resistance :≤0.03ΩInsulation Resistance:≥100mΩWithstand Voltage:AC 1500V(50HZ)/minInsertion and Extraction Force:3-20NDielectric intensity :≥2000V AC/minMechanic life :≥10000 times power plug