Isixhobo ngokwemfuno yovavanyo lwamaza edityanisiweyo yenkqubo yokuhanjiswa kwamandla ombane aphantsi-voltage ye-SPD II imveliso, ivumela ukuvelisa amandla ombane we-impulse (1.2/50μs) kunye nempembelelo yangoku (8/20μs), isetyenziselwa uvavanyo lwenqanaba le-III kunye nokunciphisa uvavanyo lombane. yeSPD kunye namacandelo.