Spotlight

The Spotlight is a lamp projecting a narrow, intense beam of light directly on to a place or person, especially a performer on stage.

Uses
In Scribblenauts and Super Scribblenauts this object could be used to illuminate dark levels, it was quite useful due to the fact it works underwater.

In Scribblenauts Unlimited these type of levels were removed, however it still display a light effect. You can turn it ON and OFF by clicking on it.