What Do The Colors On A Light Tower Mean To You?

Recently one of our customers, ImTech Technologies, LLC, made a switch from using red and green lights to blue and green on one of the industrial light towers they buy from us.

The reason is NFPA 79 (Electrical Standard for Industrial Machinery). This standard says that the colors on industrial warning lights should be used as follows:

RED shall be used to indicate Danger - an emergency condition (i.e. an e-estop).
YELLOW should be used for Warning/Caution and an Abnormal condition.
GREEN shall be used for Safe and Normal conditions.
BLUE shall be used when mandatory action is required.

I found this interesting since usually blue is just used as the fourth color, this was the first time I had a request to replace the red with the blue.

Marshall Wolf Automation offers a wide range of industrial stack lights including Patlite light towers, IDEC, Menics and many more.

You can search all of our many industrial stack light options now!