The Electrical Control Box (EFK) is used for controlling Lindinvent's fume hood via the fume hood regulator FCLb. The EFK is connected to enable the interruption of power to devices such as power strips in the event of an alarm, after a set time. Time settings and other configurations are made in the connected regulator.

The EFK can also be ordered as an accessory for fume bench control via the 2-position flow regulator FLLb.