2.4.11 Installation of manual potentiometer switches

2.4.11 Installation of manual potentiometer switches


It is a high frequency push/rotatory or slide dimmer switch. The DC supply can be increased or decreased by the switch to affect the resistance, hence the dimness of the lamp. This form of dimming requires a dimming pair of cables to be run around to each fitting in the circuit in order for it to operate.


  • An older system which some contractors feel more comfortable with

  • No interference with the switching of the luminaire

  • Inexpensive and easy to use position sensor


  • A separate dimming pair must be wired to each fitting in the circuit

  • Limited control options

  • Daylight linked dimming, or movement detectors

Economic assessment

Initial investment: low.

Payback: low.

References and best practices

Image gallery


Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices

Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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