CR 1027 is a multi-functional LED light. It is perfect for using it outdoors since it is very resistant to humidity. It turns out to be perfect for camping or fishing, though it can be used also as an accessory you simply carry in your car in case of emergency. You can use the light even when you have no access to an electric socket (it can be powered from the electricity as well as from the car lighter socket, you can also benefit from its built-in batteries, that will allow the light to work up to four hours).