Iimbonakalo:
1. Hlangana ne-62196-3 IEC 2011 IPHEPHA 3-Imigangatho ye-Im
2. Isakhiwo esikhulu sezindlu sikhuthaza ukusebenza kokhuseleko
3. I-LED ibonisa imeko yokusebenza
4. Ukufakwa kwemveliso yonke kunye namandla okukhutshwa