Question:
How many Shabbat candles should a divorced man living with his children light each Shabbat?
Answer:
The same amount as a married man. The reason is because the two candles are for “zachor” and “shamor”, the two main parts of shabbos, (not for the husband and wife). Therefore the amount remains the same
Sources:
O:CH 263-5, Aruch Hashulchan 263-11.