Category: Test

Philips, OSRAM vs Other Brands

LED Lamps will be the best lighting solution for both new projects and switching from CFL / incandescent lamp as energy saving actions at present. For the LED bulbs, it’s still one of the popular items for replacing light sources from CFL or others. Therefore, series of test has been proceeded for some big brands […]

A Brief Analysis Of CCT

As independent QA of LED lighting, we have to know the raw materials but not only some quality tools. Because we have to give buyer professional suggestions to select the correct item, correct supplier and build a reliable process. Indeed, this is also very much helpful for us to find out the root cause of […]

Two Questions Regarding The CCT

Q1: These 2 down lights are same Color Temperature, but definitely different colors of light. What's wrong? A. The test instrument (for Color Temperature) is wrong B. It is caused by different Ra C. It is caused by different SDCM D. It is caused by different X & Y value E. It is caused by […]