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 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 your 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
With high power LEDs, there is a risk of eye damage. Manufacturers should correctly measure 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 . But there are a number of serious weakness connected to this.

LEDs: time for objective quality information
Manufacturers of LED products eagerly publish performance and quality claims. But the information 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.

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. This is however a misunderstanding.

Power supply: 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?
In the LED era, the efficiency of luminaires is expressed in lumen per Watt instead of percentage. 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 – 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. 

How efficient really are LEDs?
LEDs score significantly better than halogen. But will they 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. ETAP does.