How smart seals extend the service life of luminaires

  “Intelligent seals” prevent the ingress of water and contaminants into luminaires’ housing while allowing pressure to equalise in both directions. Standard neon tubes and energy-saving lamps are increasingly replaced by LED lamps. With a very long service life, these lamps are extremely reliable and environmentally friendly. To achieve this service life, housings must be […]

Optical calculations for SSL applications

  Rough calculations are useful for estimating LED type and count at the beginning of a project. This article provides some typical techniques for calculating optical quantities and estimating LED count. A basic understanding of optical principles is necessary before any calculations can be started. The most important principles for SSL applications are reflection, refraction […]

Public lighting: Smarter lighting or no lighting at all?

  This article includes a review of major Belgian and international studies on street and highway lighting and its effects on road safety and energy conservation. In terms of street lighting, it is possible to maintain service and safety levels for users while saving energy. New terms are defined, such as “service level”, which measures […]

SANS 10114-1 compliance remains a prerequisite

Performance and energy efficiency improvements in lamps and lighting, as well as an influx of new products in recent years have replaced the familiar, standard performance parameters, but SANS 10114-1 must still be complied with. IEC Technical Committee TC 34, which is responsible for lamps and lighting standards, and the CIE International Committee on Illumination […]

Using daylight harvesting for sustainability

  The commonsense science of daylight harvesting uses sunlight to create spaces which are comfortable, energy-efficient, sustainable and code compliant. Daylighting is a relatively new term for an ancient practice. In the millennia before the introduction of electricity, buildings had to rely on available daylight to illuminate interior spaces. More recently, daylight harvesting became almost […]

General factors to consider in lighting design

  by Thomas Bond, ACDC Dynamics Lighting design for optimal light levels factors in location: the required illumination levels, working plane, lamp type, lumen output, mounting height and the required levels of uniformity. Download PDF

Dynamic, intelligent and flexible control for city lighting

  by Daniel Gooijer, Philips Lighting Over the next few years, the global urban population is expected to grow by about 44-million people every year. 70% of these people are expected to live in cities by 2050, placing considerable strain on cities’ lighting solutions. Download PDF  

Ambient LED lighting advances in tomorrow’s vehicles

  The advancement of ambient LED lighting solutions stems from the quest by automotive-OEM interior stylists to add value and make their vehicles more appealing while creating a truly positive driving experience and increasing brand awareness. Electronics is the fastest-growing sector of automotive content, over mechanical, pneumatics and hydraulics. With the increasing number of ambient […]