Light brightness can be measured with a lux meter. There are many colors that share the same brightness. My idea is to hang 7 light boxes on a wall with a rgbw led matrix built inside. Every light box will have a different color but the brightness will be the same. That`s why the title is called “same but different”. These light boxes will all change their colors together, but again they will all have one thing in common, the same brightness. I will show clear light colors, pastel colors and also gray colors. You will see colors that you would have never guessed had the same brightness.
Just like us humas. We are unique but also have a lot in common that only reveals itself by looking inside.