Portable illumination is a term used to describe a type of lighting device that can be easily moved and transported. The most common example of this is a LANTERN, which is a device that contains a source of light such as a candle or an electric bulb, and is typically made of metal or glass. Lanterns are often used for outdoor activities such as camping, hiking, and fishing, as they provide a convenient source of light that can be taken with you wherever you go.