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Lighting Controls

Lighting Controls

2019-04-10

Light is one of life’s necessities. From the first portable light torch to early electric lighting to now LED technology, we can see that the whole world is progressing and we can never live without light. But with increasing population and increasing requirement of light, with the sustainable development by conserving energy and limited natural resources, with the challenge of staying in compliance with tightening lighting standards, reducing operating and maintenance costs and improving the performance of lighting, it’s never been more important to implement lighting controls.


 The most common types of lighting controls include:

  • Dimmers;

  • Motion, occupancy, and photo sensors;

  • Timers.


It’s wise for us to learn some basic knowledge of lighting controls before we purchasing and using them, which would help us explore our indoor and outdoor lighting design options.


(1) Dimmer Controls:

According to the definition, dimmer switches are lighting controls used to control the intensity of light output from the bulb or fixture. Dimmers modify the light level by reducing or increasing the power delivered to the fixture. Simply speaking, when we dim the lighting fixtures, it reduces their wattage and output which could help save energy.


(2) Motion Sensor Controls

As defined, the motion sensor automatically turns on the exterior floodlights as soon as movement is detected and turn them off a short while later. It can also help light the way when we come home at night. They are very useful for outdoor security and utility lighting. OKT architectural LED troffers is available for motion sensor function.

(3) Occupancy Sensor Controls

An occupancy sensor is an indoor motion detecting devices used to detect the presence of a person to automatically control lights. The sensors use infrared, ultrasonic, microwave, or other technology. They provide convenience by turning lights on automatically when someone enters a room, and save energy by turning lights off soon after the last occupant has left the room. Occupancy sensors must be located where they will detect occupants or occupant activity in all parts of the room.


(4) Photo sensor Controls

Photo sensor control is divided into two main types: open loop and closed loop. Open loop - the photo sensor does not respond to, or see the electric light that it controls.

Closed loop - the photo sensor senses and responds to the electric light that it controls.

We can use photo sensors to prevent outdoor lights from operating during daylight hours. This can help save energy because we don't have to remember to turn off our outdoor lights.


(5)Timer Controls

Timers can be used to turn on and off outdoor and indoor lights at specific times. There are two types of timers: manual timers, which plug into an electrical outlet for controlling objects such as lamps or light strings; and automatic timer controls, which automate indoor or outdoor lighting.


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