If one is lighting Chanukkah candles inside (for whatever reason) relying on the publicization to himself and his family, then what should he do on Friday night if he is eating out? Must he make the candles long enough to see for half an hour when he comes back, or is half an hour after nightfall enough?
(He shouldn't light at the host's house, since lighting where you won't be sleeping doesn't fulfill the obligation.)
In terms of shabbat candles, I was always told to either light at the host or light long enough candles to see when I return. Is this halacha parallel?