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Handbook of Industrial Lighting by Stanley L. Lyons download in iPad, ePub, pdf

The required light levels are indicated in a range because different tasks, even in the same space, require different amounts of light. Longer lamp life is also gained when dimming and switching off lights when not in use. The efficiency of and market for residential lighting controls has been characterized by the Consortium for Energy Efficiency.

Included in the watt

This ability to control multiple light sources from a user device allows complex lighting scenes to be created. If you need to brush up on the basics of lighting, check out our Properties of Light article. Check your local jurisdiction for other or more stringent requirements.

Included in the watt measurement is all power consumed by light fixtures, ballasts, controls, transformers, etc. In addition, proper light levels prevent eye strain, which allows us to work comfortably for longer periods of time. Light Levels in Buildings Since we are concerned mainly with accomplishing tasks in our buildings, we need to understand the Illuminance, or the amount of light that is hitting a surface. Lighting power density is established by local and international codes.

Detailed tasks like drafting require more light, while general tasks like walking can be accomplished with less light. In general, low contrast and detailed tasks require more light while high contrast and less detailed tasks require less light.

In addition proper light

This article covers proper lighting levels and will include various lighting concepts during the conversation. The lighting levels listed below come from the Handbook as well as various other lighting references.

If you have a very specific need, we recommend further research. Wireless lighting control systems provide additional benefits including reduced installation costs and increased flexibility over where switches and sensors may be placed.