The next most common plug is the flat plug known as a Stage Pin.  Most commonly seen in theaters, it is the standard 120v dimmed power plug and a great option for any theatre.

The most common type of power connector that we see in the entertainment industry is the Edison plug.

This is the 3-pronged general duty plug that you have on the walls in your home and everywhere else.  It should only be used for 120v power, and is best for Non-Dim 120v power.

Most, if not all moving lights and LED lighting fixtures and video walls use the Twistlock.  It is the production industry standard for 208v power.

Stage Pin

Edison

Twist Lock