12 hour light sticks
These Cyalume light sticks will give you enough light to light your way, but also enough light to read, write or do tasks. In times of extreme need, you could even slice them open and sprinkle the fluid to mark a path or directions.
From the manufacturers website:
In an emergency situation, every second counts. Flashlights can limit your ability to see and cannot always be relied upon. The dependable 6” SnapLight® is easy to use, easy to identify and dispose of when in emergency situations. Providing 360° of light, the 6” SnapLight is recommended for personal use during evacuations, power outages, camping, auto safety, and utility work. Perfect for survival, first aid, and evacuation kits as they produce no heat, spark, or flame. Individually foil-wrapped for light/moisture protection.