LED information

Colour rendering: CRI becomes CFI
Colour rendering in lighting has been represented for years by the Colour Rendering Index (CRI). Time for something new?

How long will your LED lighting really last?
Get to know your way around maintenance factors and service life.

Why good quality drivers are that important
Output current fluctuations in LED lighting have a significant direct impact on luminous flux. The quality of the drivers is therefore of the utmost importance.

Every lumen counts
Compare LEDs and fluorescents on the basis of you actual lighting needs.

Overdimensioning or intelligent control?
How daylight control can compensate for the depreciation of your LED lighting.

OLED: a new kind of lighting
Now that LEDs are slowly becoming the norm in terms of lighting solutions, a new technology is being developed, i.e., OLEDs.

LEDs and light control, further savings
LEDs are not only an energy-efficient light source. They have a number of specific properties that make them particularly suitable for use with light control systems.

Maintenance factors for application of LEDs
The maintenance factors used in lighting studies do not take sufficient account of the specific properties of LEDs, often resulting in inaccurate calculations.

The (limited) risk of blue light
Given the high luminance resulting from many high power LEDs, there is a risk of eye damage. It's important that manufacturers correctly measure and clearly publish the photo biological safety.

How fast do you earn back the extra cost?
But does it pay today to replace your existing installation with LED lighting? ETAP will help you estimate the payback period.

Watch out with LED tubes
It seems like a great idea to simply replace your fluorescent lamp by a suitable LED lamp and thus benefit from the advantages of LEDs. Unfortunately, there are a number of serious weakness and even dangers connected to this.

LEDs: time for objective quality information
Manufacturers of LED products eagerly publish performance and quality claims. But the information from the different manufacturers often cannot be compared.

Optical design for LEDs, quite a challenge
With LEDS, a specific design of optics and luminaire is required, with special attention for light distribution and peak luminances. Expert Ward De Ketelaere explains how and why.

Electric safety with LEDs - less easy than it seems
It is often assumed that LED lighting does not present any special demands regarding electrical safety because it works at a low voltage. This is however a misunderstanding.

Power supply for LEDs: an electronic work of precision
Power supply plays a crucial role in the performance and lifetime of a luminaire. Power supplies for LEDs need to meet a number of specific requirements.

Why is the efficiency expressed in lm/W?
For years, the efficiency of fluorescent luminaires has been expressed in terms of percentage. But in the LED era, we talk about lumen per Watt. There are good reasons for this.

Why LEDs better keep their cool
LEDs are known for their high efficiency and long life. But these two are highly dependent on the working temperature.

LED development - a discipline in its own right 
LEDs create new possibilities to innovate and offer customers the best possible solution for every application – provided that the manufacturer has the necessary expertise.

How to deal with variations in colour?
The production process of LEDs inevitably leads to a high amount of variations in colour and light output. Nevertheless, ETAP will guarantee uniformity on al levels. 

How efficient really are LEDs?
The wildest stories have been circulating about the light performance of LEDs. One thing is certain though: LEDs score significantly better than halogen. But will LEDs soon also outdo fluorescent solutions?

LEDs cold and stark? No way!
Using LEDs to make a room cosy and inviting? A lot of people don't believe this is possible. LED specialist Gert Huysmans explains: “More and more variations are being produced with a much warmer light.”