You can use several different dimming options to dim LED Lighting. What are the possibilities and what dimming should you look from a LED driver? I’m going to answer these questions in this blog post by going through the different systems. The goal is to give you the basic understanding of the dimming methods available…
Q:You have the driving current 700mA written in the datasheet of your LED module. Can I use smaller driving current? A:Yes, you can use smaller current. The current value 700mA mentioned in the module’s data sheet is so-called nominal/typical value that corresponds to the value Citizen announces for voltage and luminous flux (lumens) of the…
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…
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…
I am very pleased to be writing this letter to our customers and partners – and to thank all of you who have trusted us over these past 30 years, helping us to sustain and grow the company. The history of Arrant-Light Oy dates back 30 years to when my father, Tarmo Mäkinen, founded the…
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…
LED – The replacement for every light source we possess? Thanks to the tightened regulations and more energy efficient approach, LED has started to replace all the traditional lighting. But what do those three letters hold inside? What actually IS LED? Literally, it is a light-emitting diode. Technically it is PN-junction. Functionally it is a…