In the Illustrator tutorial we will see you will learn how to create an effect similar to Light Painting. These are effects that are created in Photography using a dark scene. A camera with a long exposure and a light source, such as a flashlight. In this way we are basically painting something with a lamp in the dark.
The effect is very interesting and unique. It is not intended to be realistic, but to have a visual impact on the viewer. The key to this effect are Vector Brushes and Blending Modes.