Comparison of commonly used door switches used for cabinet lighting

 
1. MAGNET AND REED SENSOR (best choice)
2. MICROSWITCH
3. PIR – PASSIVE INFRARED
4. RIR – REFLECTIVE INFRARED

1. MAGNET AND REED SENSOR

Fully concealed door switch system developed and supplied by Lightdream

Lightdream: Two door cabinet with concealed door switch parts

Pros

  • can be fully concealed
  • not affected by slight door warp when thin or high doors are used
  • switching is silent – no click noises which are amplified in boxy cabinets
  • inexpensive parts
  • the light goes on as soon as the door is opened and goes off just before the door is closed
  • easily installed in the factory by the cabinetmaker saving onsite time for the electrician
  • for any door type – hinged, sliding, bifold
  • operates across large door to cabinet gaps up to 30mm
  • long life – over 10 million operations – extremely reliable
  • able to turn off the light automatically if a door is left open
  • safe and easy to install as parts operate at very low voltage and simply plug together

2. MICROSWITCH

unsightly door switches

Cons

  • unsightly
  • a microswitch in operation makes an audible click sound which is amplified by boxy cabinets
  • requires an electrician to install
  • does not time out if a door is left open
  • not suitable for sliding doors
  • being mechanical it can have a short lifespan
  • one of the complaints of cabinetmakers is attending jobs where a poorly fitted microswitch is keeping the door ajar.

3. PIR – PASSIVE INFRARED

Clipsal PIR

Cons

  • unsightly – bulky, quite wide and deep (70 x 140mm) for cabinet interiors
  • does not detect door opening. Detects infrared, therefore two actions are required before the light comes on. First action, open door, second action,
    move your body or arms to cause the sensor to trigger.
  • requires an electrician to install
  • minimum load is 40W which is much greater than most LED loads
  • has built-in time delay which keeps the light on for a period of time after the doors are closed or switches off whilst doors are still open
  • expensive

4. RIR – REFLECTIVE INFRARED

Fixed just inside the cabinet at the top
IR reflective door switch

Cons

  • unsightly due to exposed wires and plugs
  • short cables with bulky plugs makes a difficult installation
  • Works by detecting a door and reflecting IR light back into the sensor which switches off the light. The problem is that sunlight and other light sources will also enter the sensor when the door is opened which has the effect of turning off the light.
  • preferable for use in dark spaces only where there is no ambient or stray light.

Types of lighting

Ambient lighting is the general lighting in a room or space. It should provide a comfortable level of brightness without glare.

Task lighting is bright to enable the task at hand. Kitchen benchtops and other work areas require task lighting. Wardrobes and closets may also require this level of lighting.

Accent lighting is for use on kickboards, open shelving and recessed sections. The effect is to highlight a space and add drama.

Indirect lighting is used to minimise glare. Light sources are best placed in a cove or behind a pelmet.

Courtesy lighting is for the interiors of wardrobes, cabinets and drawers. Apart from functionality it also adds ambiance and a feel of luxury.

Diffused lighting is a soft light without glare. Normally produced by placing a diffuser in front of the light source. The diffuser scatters the light allowing it to wrap around objects and avoiding shadows.

Spot lighting is used to highlight a particular object on a shelf or a work of art. It is a concentrated form of light and is best placed pointing away from the observer.


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