• Kusankha ndi kuwonetsa mphamvu yotulutsa, mphamvu yotulutsa, kuchuluka kwa mphamvu yotulutsa,
gawo la mngelo, kutentha kwa ntchito,
nthawi yogwira ntchito, ndi chenjezo la cholakwika.
• Fufuzani zokha mfundo yomveka bwino mukayamba.
• Nthawi yoyankha mwachangu kuti musankhe voltage ndi frequency.