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Newsletters of Sustainable Lighting

Tips for making informed energy efficiency decisions

Tips for making informed energy efficiency decisions

As a facility manager or property owner, you may be feeling pressure to improve your site’s energy efficiency or to help tenants reduce their energy bills. And, unfortunately, the expectation can sometimes be that you do this with no additional resources and little budget, which can ultimately leave one in the position of having to rely on vendors. However, this doesn’t mean you have to be at their mercy. 

Surface brightness, light distribution & light patterns

Surface brightness, light distribution & light patterns

The pattern of light on walls and ceilings and floors affects us psychologically. In several studies going back to John Flynn in the early 1970s, intensity and uniformity of light in a space create impressions of visual clarity, spaciousness, preference, relaxation, and privacy. For example, to make an office space appear larger and brighter, it helps to wash the walls and ceilings with light. To make a restaurant look more private and romantic, light should be kept away from walls and ceilings except as accent on artwork or features.

Retail lighting application

Retail lighting application

Design Strategies

The primary goal for big box, small box, and specialty market retail stores is to highlight the product while providing appropriate ambient (general circulation) lighting that provides a pleasant backdrop for the shopping experience. 

Often, the ambient lighting in these stores is so bright that higher wattage accent lighting must be used to provide enough brightness for products to stand out, increasing energy use two fold by using more light and energy than is necessary.

How to Provide Lighting for the Elderly

How to Provide Lighting for the Elderly

Lighting designed to meet the special needs of the aging or diseased eye is especially critical in health care facilities, senior care homes and outdoor lighting in public spaces.  The following list summarizes the lighting factors that deserve special attention (IESNA, 2007):

Light distribution on surfaces

Light distribution on surfaces

Technically, luminance thoroughly describes the visual scene and should be the primary design metric. The problem is, luminance is not easily measured and calculations are complex and time consuming. Because luminance depends on the reflectance of the surface, it is highly dependent on exact knowledge of architectural and interior finishes. Most footcandle-based standards are simplified approximations of true luminance-based design and analysis. Luminance should be considered as part of the design.

Technilux Lighting
  • Address Unit 18, 41-49 Norcal Road,
  • Nunawading, Victoria, Australia
  • ABN 69 065 653 885
  • Telephone +61 03-9872-7688
  • Fax +61 03-9874-8299
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