We love those headlamps! We have the kind with both white and red lights, and they are great for everything from power outage to shifting the chickens around at night. They don’t seem to “see” the red light, so we can slip in after dusk to introduce new layers, etc.
Flashlights in every room, oil lamps and candles available for more long-term use – especially in situations where the batteries run out of power.
Hubs has one of those shake-a-light flashlights. It’s okay, but the beam is not all that impressive. Still, it works and doesn’t require replacement batteries.