Batteries or Matches
Most people who have an emergency supply kit know to keep some sort of backup light in their kit. Some people prefer to store candles while others like to have flashlights, LED lanterns or another sort of battery powered light. Regardless of which you store in your emergency supply kit, you will need to have some way of “turning on” that light. Candles do no good without something to start the flame. You can store a couple boxes of matches in your emergency supply kit, or you can keep a lighter inside. Cigarette lighters can be found at almost any store, and larger lighters are widely available. If you choose to use a larger lighter, be sure to occasionally check the level of fluid in the lighter. The last thing you want is to run out of lighter fluid when you need it.
If you prefer battery powered lights, be sure to keep several extra sets of batteries in your kit. Make sure you have at least one extra full set of batteries per light. If you have two lanterns and they each need three batteries, keep at least six batteries in your kit.