Grow Room Question on Light Levels

[pop22]

What is your criteria for light levels? its seems to me to be set a bit low. When mine say 95%, 95% of what base figure? According to so called conventional wisdom, my light levels are about 50-60% of whats recommended for a tent with no CO2. My PF is about 620

 

[okPeet]

Light levels that the Pulse One (new name) measures are just relative. They don't really correlate to anything, just that say at full blast your lights are 90%, and when it's off it reads 1% or w/e. All that means is full blast = 90, off = 1.