Automatic staircase lighting TLA-4
The automatic staircase lighting TLA-4 includes 4 different operating modes, which can be set using the rotary switch on the front.
With functions a, b, the operating time can be repeatedly extended by briefly pressing the control button(s). Each short press multiplies the time set by the potentiometer. The maximum value of the activation time thus extended is a maximum of 30 minutes, regardless of the number of presses.