I tested my 25 panel P10 setup with 10 different brightness levels hidden inside the Falcon Player. Results below, as measured from cheap ebay current meter/shunt. (expect for the final value which had to be measured via multimeter as the ebay special maxed out at 50A) Not entirely sure about this little ebay meter's calibrations, particularly at the lower levels (under reading by maybe <=1A) but at higher levels it seems to match up with against my multimeter. Value below also include BBB own power consumption. [attachimg=1] I also tried brightness 12 whilst playing a video and it spiked at 59A of a 60A supply. Did not try that one on full White!!! IMO I actually think decreasing the value to 5 made my video content look better. This is definitely something that won;t be decided until everything is setup and it's brightness can be compared against the rest of the display. Having said that I'm finding my video content is going to need careful tuning to get brightness/contrast/saturation and maybe gamma levels set correctly so it looks clearer on the panels. To change the BBB's brightness level, you need to modify the PRU source code & recompile. (Thanks to Phil for asking the question on the Falcon forums http://falconchristmas.com/forum/index.php/topic,2727.15.html SSH to your BBB machine. cd /opt/fpp/src/pru sudo nano FalconMatrix.p (then edit the Brightness level line from the default 7 value) sudo make sudo make release Then restart the FPPD service for it to update.