1,good quality,long life 2,long endurse 3,good material and silver and contact 1,Rating : 3A 250VAC 5A 125VAC2,Contact Resistance :≤30mΩ3,Insulation Resistance :≥100MΩ4,Operating force :0.3~1.5N5,Dielectric intensity :≥1000VAC/ 1min6,Electrical life :≥100000 cycles micro switches