Unless you're equipped at all times with a set of night vision goggles, there's a rather unfortunate reality that you're going to have to face each day—it's generally considered difficult to see at night. Sure, you can get by without a source of light when you're in the city, but when you're out camping in some of the most remote places of the world you likely won't have any streetlights to help guide you. If you're the kind of person who enjoys falling over chairs, rocks, stoves, cots, tents, and other various pieces of camping gear that are generally always in the wrong place at the wrong time when it's dark out (ask me how I know) stop reading here.
However, if you're the kind of person who enjoys a properly lit campsite, you might want to check out the affordable Nokero Solar Rechargeable LED Light Bulb. The Nokero N200 is currently the most affordable solar light on the market ($20) and is commonly used in developing countries where it can pay for itself in as little as two weeks when compared to other sources of lighting such as expensive candles or kerosene. After sitting in the sun all day, the Nokero provides up to 6 hours of light and can easily hang from almost anywhere.