Brightness problem with DMX_WS2812_Fixture_Demo.ino

[kadarcsaba1]

Dear GadgetReboot,

I am a new user in the ARDUINO topic.
I have done the whole project (below) and it works fine:
Arduino/Uno/DMX_Serial_Tx_Rx/WS2812B_60_Test/DMX_WS2812_Fixture_Demo.ino

This is the project that I have searched for.
WS2812B ledstrip controled with an arduino nano 328p over the DMX protocol.
But I have a little problem with master brightness of the ledstrip.
When I send a 255 (max.) DMX signal (from PC QLC+) to each RGB pixel then the WS2812B ledstrip doesn't work with maximum brightness.

I have compared the currents:

• about 10mA/pixel << with DMX_WS2812_Fixture_Demo.ino
• about 34mA/pixel << with FASTLED library / RGBCalibrate.ino

Could you help me with this topic?
Where do I have to modify the sketch in order to have maximum brightness of the ledsstrip?

Thank you very much for your answer
Csaba