GDZG-300 letoto la DC high voltage tester e ntse e leka DC high voltage bakeng sa zinc oxide lighting arrester, magnetic blowing arrester, lithapo tsa matla, jenereithara, li-transformer, li-switch le lisebelisoa tse ling, tse loketseng lekala la matla a motlakase, lefapha la matla la lifeme, likarolo tsa lipatlisiso tsa saense, terene, indasteri ea lik'hemik'hale, limela tsa motlakase.