Epoxy ballast applies a mixture of silica sand resin on the surface of electronic components, which forming a solid mass completely encloses. It is designed to resist dust, insect, humidity and protect the fragile electronic components. It significantly reduces the vibration caused during transportation, the penetration of moist and insects, enhances the electrical insulation reliability and heat dissipation. MAT Dimming ballast is a value-added option to optimize the energ