The product is applicable for 50/60Hz power supply, and in the lamp circuit with a altitude of sea level under 3000m, it has application in smoothing startup of light and maintaining stable discharge of electrical arc. The product has oil immersion structure, its small and light with good thermal diffusivity and self-cure ability, theres internal explorsion-proof structure to supply security function.Operating standard: GB3667-1997 IEC556-1982 Capacitance accuracy: ?% or according to customers requirement Discharge capacity: 2Un, remaining voltage is lower 50V in 3 minute after power off.