We see more and more light sources that supposed to be exactly the same color temperature, but actually appear different to human eye. So why the same color temperatures look different? When people talk about color temperature, they are usually talking about correlated color temperature instead (CCT). There is a difference between these two. Color…
Generally, when selecting LED luminaires, the attention is drawn to energy consumption. Efficacy, therefore, the power consumption, is the most important selection criterion. But do you pay attention to the lifetime of the luminaire? What happens if the better efficacy luminaire has shorter lifetime? This means that you may have to renew the luminaires much…
How to affect the lifetime of a LED module Lifetime of a LED module? What it means? Does it mean that LED module does not function anymore after the defined lifetime value? How to determine lifetime for the LED module? This post tries to explain what different lifetime estimation curves mean and how to interpret…
COB LEDs are very popular nowadays in LED lighting business. We talk and write about COBs, and our customers use COBs in their luminaires, but what exactly is COB? First of all, the abbreviation COB comes from words Chip-on-Board. In COB packages many LED chips are usually attached to substrate with non-conductive adhesive. LED chips…
We released a new brand for our products; aLED. At first this brand is used along with our led modules, but later there will be more products to be labelled aLED. There might be some people, possibly you, wondering what does aLED stand for? And why did we decide to create such a brand? Let…
In my previous blog post, I wrote about the general development of the LED. Focus was in the development of LED component. How it was transformed from a laboratory experiment to a mass production of commercial product. Different colors of LEDs were produced by applying different semiconductor layers on certain substrate materials. Still, there was…
Citizen has released brand new generation 3 COB LEDs. Is this post I go through briefly what changes and advantages this update brings to Citizen LEDs. First thing which is noticeable with new LEDs is that product code changes from e.g. CLL022 to CLU024. Third letter has been changed to ‘U’ to inform that generation…
There are many aspects that have to be taken into account when constructing a LED luminaire. In this post I will give you some tips how to build a LED luminaire and which things have to be considered. There are five steps for designing LED luminaires: The definition of lighting requirements; how much you need…
When you are talking about the history of some phenomenon, you will end up to the endless question where to start. So is also the case with LED components. As such, light emitting diode is the electrical component which conducts current to only one polarity of voltage, forward voltage, as told in an earlier blog.…
There are tons of different LEDs even in one manufacturer’s selection so how on earth can you find the right LED for your solution? In my previous post I discussed about the basic characteristics and operation principles of LEDs. In this post I will discuss about different packages and about the facts that will…