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Theben Twilight Switches

LUNA 108 Twilight Switch Single Channel (Single Module)

A 17.5mm (1 module) wide 16A dusk-to-dawn switch for controlling street light facilities, external stairways, shop windows etc. It has a single brightness range selectable between 2 – 100 LUX and comes complete with a surface mount sensor.

  • Space saving (single module) installation.
  • 16 (10)A light sensor switching capacity.
  • 2 – 100 LUX adjustable range.
  • 20/80 second (ON/OFF) built-in delay prevents nuisance switching.
  • Green LED shows switching status.
  • Red LED shows light sensor status.
  • Switches up to 2300W of filament lighting, 400VA of fluorescent lighting or 140W of low energy lighting.
  • Surface mount kit. Part No. 907.0.065.
  • Surface mount light sensor (spare) Part No. 907.0.008.
  • Energy Saving 2015
  • Theben 3 Year Guarantee


Timer Mode Dusk/Dawn
Setting Type Adjusting Screw
Brightness Range LUX 2 – 100
Adjustment Brightness Range 1 Range
Switching Delay ON/OFF 20/80 Seconds
Voltage Free Contacts ON/OFF
Operating Voltage 230V AC
Switch Rating 230V AC Resistive 16A, Inductive 10A
Operating Temperature -25 to 50ºC
Operating Temperature Sensor -40 to 70ºC
EC Directives Conforms to Latest Directives
Dimensions (mm) Width 17.5, Height 90, Depth 65.5

Acceptable lighting loads: LUNA 108 / 109 – filament 2300W, fluorescent 400VA, low energy 140W, discharge 400VA.

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