LED Knowledge

What is the difference between edge-lit and back-lit LED panels?

2021-01-22
What is the difference between edge-lit and back-lit LED panels?A back-lit LED panel is made of an array of LEDs fitted ...

What is UGR?

2021-01-22
UNIFIED GLARE RATING (UGR)Introduction to UGRUGR stands for Unified Glare Rating. It is an objective measure of glare th...

External Driver Method For Highmast Light

2021-05-31
In the past three years of practical projects, we have accumulated more experience in the field of stadium lighting.The external power supply is proposed by the customer. In most cases, the problem...

COMMISSION DELEGATED REGULATION (EU) 2019/2015 ERP STANDARD

2021-02-06
COMMISSION DELEGATED REGULATION (EU) 2019/2015of 11 March 2019supplementing Regulation (EU) 2017/1369 of the European Pa...

Calculations Glare Ratin(GR Observer)

2021-01-29
Calculations Glare Rating ConceptsIn 1994, the CIE developed a glare evaluation method for outdoor sports lighting and a...

What is Luminous Flux?

2021-01-22
Luminous flux is a measure of the power of visible light produced by a light source or light fitting. It is measured in ...

What is DALI ?

2021-01-22
LI GuideDALI stands for Digital Addressable Lighting Interface. It is a 2-way communications protocol that is used to pr...

What is LM-80? A Guide to LM-80 Standard

2021-01-22
LM-80 is a standard that defines how the lumen output and colour shift of LEDs should be measured over time and at diffe...

What is LM-79?

2021-01-22
LM-79 is a standard that defines how the performance of an LED lamp or fixture should be measured. A test according to L...