interesting topics.
I'll share what I prepare for my family BoB or BiB prior to 2017:
- Everyone has a unit of Fenix E10 in their BoB installed with Energizer L91 + 2 spare Energizer L91.
- Kids have their own AAA backup light ranging from 4Sevens Preon to Single AAA cell lantern with 2 spare L92.
- Wifey has Olight S1 Baton with 4 spare CR123A as backup.
From 2017 'till now:
- Fenix E10 + 2 spare Energizer L91 is standard backup light for their BoB.
- My teenager started EDC-ing Olight i1R and using NiMH rechargeable in their AAA lights (Fenix, Olight, etc.)
- Young one still on AAA lantern and a headlamp.
- Wifey upgraded from Olight S1 Baton to Olight S Mini Titanium. Spare CR123A refreshed. SureFire with 16650 added.
- I've also re-wired the power source of "BriteStrike APALS" to 2 x AA/AAA in various colored LED (it last for months on blinking mode) as their signaling kit and also as spare light.
- Every bag has a 1 x AA Zebralight Headlamp or Olight S1A clipped outside for immediate deployment
Beside flashlights, other essentials like whistle, lighter, 9V battery + steel wool, chemlight, knives, multitools, water, water filtration system, first aid kit, masks, sanitary items, medicines, small radio, snacks, etc. are also in the family kit or part of their BoB/BiB.
IMHO, a flashlight is good to have for a 72 hours kit, knowledge and will to survive is still the key to making it out alive.