Lighting Control: Light Level Controls Explained

By: Lighting Control  05-Apr-2012
Keywords: Lighting Control

Commonly where light level control is required, the lighting control system will include the use of photocells that detect the level of daylight present. If that level of daylight rises above a pre-set level then the lights will be either switched off, or dimmed down (depending on the light fitting and the control).

If the level of natural light decreases below the set parameter, then the lighting is switched on, or dimmed at a higher pre-set level.

Lighting Control Allows for Pre-Programming

More sophisticated light level controls also allow for time delays to prevent nuisance switching. Without a time delay, dark clouds for example, could cause lights to switch on and off too frequently during a short time period.

Many systems also provide optional manual control via a local switch input, allowing the user to override the dimming levels and turn the lighting on or off.

‘Twilight’ switches detect light levels and designed to switch external security lights on at ‘twilight’, or to turn on display or sign lighting.

Lighting Control Balances Light

Daylight harvesting is a term used to describe the ability of the lighting control system to optimise the balance between natural and artificial lighting for the occupants of a building. Highly accurate photocells are required that can precisely measure the amount of light as a lux level on a desk surface, or as relative brightness from a window.

Artificial lighting is automatically adjusted up or down to maintain a constant brightness dependent on the amount of natural light available.

Studies suggest that the over illumination found in many workplaces is a common cause of worker fatigue. Maximising natural daylight increases productivity and increases a sense of wellbeing. It may increase your ability to retain quality staff.

Additionally all stakeholders can feel good from an environmental stance, knowing that energy is being used only where necessary. The added benefit when artificial lighting is reduced, is that there is a reduction in power usage, and therefore in energy costs!

To get more information, or for your free consultation, contact at Intelligent Environments today.

Keywords: Lighting Control

Other news and updates from Lighting Control


Lighting Control: An Easy Method Of Energy Efficiency

The smallest home as well as the largest business can adopt practices such as lighting control to help sustain the environment while decreasing the costs of using utilities. It is much easier these days to reduce the carbon footprint both at home and in business practices when you want to adopt a more sustainable way of life.


Lighting Control – Reducing your carbon footprint

It is generally accepted that business can no longer ignore the effect on today’s global market with consumers demonstrating reluctance to buy goods and services with large carbon footprints or from companies who are seen to have a negative effect on the world’s society.


Lighting Control – To Dim, or Not to Dim

An example may be a hotel dining room – rather than staff having to manually switch on and off, or dim up and down, banks of lights to achieve the desired affect for breakfast, lunch or dinner – three scenes can be set up to complete the task automatically. With a lighting control system, this then allows ‘scenes’ to be created where groups of lights can be set at pre-determined levels, to create a particular visual effect.