The unit employs four overlapped color filter wheels, inserted into a light beam near its source, to produce colored light.

He then selected another band, this time a computer graphic of the space around Escobar, and the ships as little colored lights winking and diving through it.

To obtain colored light, colored gels may be used.

Tactical lights may have optional filters to produce colored light, or may emit only infrared radiation for use with night vision equipment.

Some carried colored lights.

An LED flashlight may contain different LEDs for white and colored light, selectable by the user for different purposes.

A pull chain attached to most pieces turns on little colored lights imbedded in the surfaces.

Fancy Ford roadster with little colored lights at fender guide, at radiator cap, and three behind.

"Interlocking" or "home" signals have a double head and show two colored lights.

In most mass produced low-priced signs today, clear glass tubing is coated with translucent paint to produce colored light.