Although any flashlight can be a camping flashlight, here are some features that will be beneficial when taking a light on a camping trip. Water and dust resistance. A good camping-ready light will be IP55 or higher rated to protect it from moisture, high humidity, rain, and dust.  Long runtimes. You want a flashlight that will last for several days of intermittent use. Pick a light with a high capacity 21700, 26650, or 18650 size lithium-ion battery. A flashlight with low output modes is beneficial for increased runtimes as well.  Onboard charging. The ability to recharge a flashlight without taking out the battery is a big advantage. A rechargeable flashlight can be recharged with a cell phone charger plugged into your car cigarette lighter, or with a portable power bank.