Digitally adjustable staircase light timer with switch-off warning and permanent light button switchable. Standby loss only 0.7 watts. With ESL optimization and multifunction. The functions and times are entered using the MODE and SET buttons as per the operating instructions and shown digitally on the LC display. A key lock is possible. Contact switching at zero crossing to protect the contacts and lamps. In particular, this extends the life of energy-saving lamps. The noiseless electronics do not bother the most sensitive ear - in contrast to many synchronous motors with mechanical gears. By using a bistable relay, there is no coil power loss and no heating as a result, even when switched on. After installation, wait for the automatic short synchronization before connecting the switched consumer to the mains. Control, supply and switching voltage 230V. Also with galvanically isolated universal control voltage 8..230V UC. For 3- and 4-wire circuits, can be switched on again, with attic lighting in 4-wire circuits. Automatic detection of the circuit type. Glow lamp current up to 50mA, depending on the ignition voltage of the glow lamps. Exact time setting 1 to 99 minutes. Separate permanent light button with the protruding SET button in the TLZ, ESV, ES and ER functions. With motion detector control input BM, which converts the input signal into a control pulse in the TLZ function. The permanent light button function is not active here. After a power failure in the TLZ function setting, the lighting is switched on again if the time sequence has not yet ended. The time sequence is shown in the middle of the display. Meanwhile, the target time flashes at the bottom of the display. The accumulated switch-on time is shown there outside of a time sequence. First in hours (h) and then in months (m) with one decimal place. If the target time flashes but the time elapse display does not change, a control button is blocked. If the switch-off warning is switched on, the lighting flickers at an adjustable time of 10 to 50 seconds before the time elapses and a total of 3 times at increasingly shorter intervals. If the permanent light button is switched on, you can press the button for longer than 1 second to set the light to permanent, which switches off automatically after an adjustable time of 0.5 to 10 hours, or you can press the button for longer than 2 seconds to switch it off. This function is not active on the BM input. If the permanent light button and switch-off warning are switched on, the switch-off warning only occurs after the permanent light is switched off. If all or part of the energy-saving lamps ESL are switched on, activate the ESL position in the display. This is indicated by a + sign next to the function abbreviation at the top of the display.Within the first second after switching on or switching on again, the time for the TLZ functions can be extended by briefly pressing the button up to 3 times (pumping). Each time the button is pressed, the set time is added once. This function is not active on the BM input. With multifunction: Can be switched to the functions ES (impulse switch), ER (relay), ESV (impulse switch with release delay) and BZ (operating hours counter). After setting the desired function, it can be locked. An arrow to the right of the function abbreviation at the top of the display shows the locking status. ESV: After the set delay time of 0.1 to 9.9 hours has elapsed, the device switches off automatically if the manual off command has not been given. Switch-off pre-warning, button permanent light and ESL can also be switched on with ESV. BZ: As long as the button input is energized, the + sign is shown next to the function abbreviation BZ at the very top of the display and the added time is shown at the bottom of the display. Initially up to 9999 hours (h), then automatically