You are currently browsing the tag archive for the ‘LED’ tag.

Some IEC safety and performance standards for LEDs cannot be adopted locally, which prompted the local lighting industry to compose a local LED luminaire performance standard… (more)

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Why drivers are needed for LEDs, their most important characteristics and their role in terms of influencing performance and lifetime. This article highlights how LED drivers by Henk Rotman, Philips Lighting offering operating windows are better equipped to deal with developments in the LED industry… (more)

A 20% import duty was imposed on LED lamps and fittings as of 1 January 2013, and a further application by the Department of Trade and Industry (DTI) and the International Trade Administration Commission (ITAC) for another duty increase is currently pending. How this would impact the SA LED manufacturing and distribution industry, the local energy efficiency drive and the influx of inferior product from abroad was discussed at a recent meeting of members of the Illumination Engineering Society of South Africa (IESSA)… (more)

Understanding and comparing LED performance appears straightforward: get the datasheets, compare numbers for light output, efficacy and lumen maintenance, and make a decision.Unfortunately, any purchase and design decision based simply on the top-line numbers – the specifications on the early pages – without analysis of how the LEDs will perform under real operating conditions can lead to unsatisfactory results and significant business risks… (more)

This month’s winning letter, from Chris Stewart, Alcatel-Lucent South Africa
Some claims, when promoting LED products, are misleading or at least rather ambiguous. However, bad advertising does not make the technology or its products “bad” since some facts are undeniable: LEDs offer the highest lumen per watt of any “white” light source… (more)

A 20% import duty was imposed on LED lamps and fittings as of 1 January 2013 with a further application by the Department of Trade and Industry (DTI) and the International Trade Administration Commission (ITAC) for another duty increase currently pending. How this would impact the SA LED manufacturing and distribution industry, the local energy efficiency drive and the influx of inferior product from abroad was discussed at a recent meeting of members of the Illumination Engineering Society of South Africa (IESSA)… (more)

At the outset, let me state unequivocally that I am neither an activist on behalf of LED lighting nor an activist against LEDs… (more)

The rise of LED lighting has transformed the lighting industry, but their emergence as a functional light source has highlighted the need to ensure that performance claims are made in a consistent and transparent way… (more)

In 2011, the global lighting market was estimated to be worth between R799-billion and R924-billion. The high-intensity LED market alone was worth just over R106-billion and is expected, researchers say, to reach a staggering R1173-billion over the next two years. The same researchers predict a 20% market growth for LED lighting (indoor and outdoor) until “at least 2016″… (more)

Philips Electronics and Eskom have announced Africa’s largest LED lighting deal to date. Under the agreement, 200 000 Philips MasterLED lamps are being distributed by Karebo Systems at discounted prices throughout South Africa to professional users of lighting such as hotels, banks, offices and retail outlets… (more)

Super low-profile and incredibly powerful – these are the demands that touch screens place on infrared components. A new ChipLED is one of the smallest on the market. With its high performance, it is ideal for low-profile all-in-one computers and laptop displays. And the infrared emitter (IRED) is so small that it can be easily integrated in smartphones)… (more)

Environmental hazards like mercury pollution, high energy costs, low lumen output and inconsistent, uneven coverage are just a few of the associations with most lighting installations found in commercial settings today… (more)

The Radiant Group is updating its existing outdoor, residential and commercial LED product lines and has also developed an LED range for the budget-conscious. Chris Calitz, director, product development at Radiant, says there is an awareness among customers of the need to implement energy efficient solutions to power daily operations… (more)

Light emitting diodes (LEDs) have a reputation for running cool. Touch one and all you’ll feel is a serene glow. But just try and pack dozens of them together in a tight space and they’ll get so hot that they can burn out within seconds… (more)

Rapid advances in light emitting diode (LED) lighting technology are making LED lighting an increasingly viable solution for those conscious of the need to save energy. … (more)

Low voltage down-lights are effective and very fashionable. When correctly spaced they provide excellent lighting, usually for commercial and domestic applications. In some residential complexes the developer avoids the expense of decorative luminaires by installing standard 50 mm down-lights everywhere, from living room to bathroom… (more)

With LEDs gaining popularity and attracting an increasing amount of attention in today’s marketplace, a cautious approach to the application of this new light source is recommended. Many industry players indiscriminately advise clients that LEDs can be utilised for general illumination, but this is technically incorrect from a lighting perspective… (more)

Having decided to develop and launch an amateur radio CubeSat, there are a few challenges that have to be overcome. It may sound easy, but to decide on what equipment to include on the satellite is actually very difficult… (more)

Innovative and intuitive technology for building- and room-control solutions can be adapted to the user’s needs and also help to increase energy efficiency… (more)

The lighting market has witnessed a rapid increase in the use of light emitting diodes in applications like automotive, emergency and decorative (architectural) lighting. Looking at general lighting, LEDs are increasingly being used in outdoor decorative (architectural) lighting projects, thanks to the saturated colours, the possibility of colour dynamics and the low maintenance needed during the long LED lifetime… (more)

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