Characteristics and Interoperability Earldom SC04 Power Socket Easily Manages A Circumstance MOV, or zinc oxide varistor Rapid blocking high voltage regulates the residual voltage within the safe range and starts and absorbs lightning voltage instantly. GDT, or ceramic gas discharge tube To address the hidden issue of high current, strong current isolation can effectively absorb excess current and connect the current to the ground wire. Fuse protector with high temperature Cut off the extremely high temperature completely. Fusible metal with a low melting point is used to create the lightning protector's high temperature fuse protector. The safety of household appliances is guaranteed as it will quickly fuse itself once the induced temperature rises too high.