Tíngdiàn de wǎnshàng, quánjiā wéi zhe yóudēng chīfàn.
On the night of the power outage, the whole family gathered around the oil lamp for dinner.
Tips
culture
The classic 盏 (zhǎn) measure word fits 油灯 because traditional oil lamps were shallow saucers (灯盏) holding wick + oil. This is also why 一盏茶 means 'a small dish of tea' — same shape, same measure.