I am not sure I understand the charting system you are using. I have a few questions (on your chart). Is it possible you can 'enlighten' me as to my questions?
Initial Output/Throw: This refers to the whole table. It means that I take my readings immediately after turning on the light (i.e. within ~30 secs or so). If you look at the actual runtimes, you will see most lights tend not to be fully regulated at first, so "steady-state" levels may be lower in many cases than what is reported in the tables.
Throw Max: "Throw" is defined as the square-root of center-beam lux readings taken at 1m from the lens. Actual lux readings at 1m are presented in the brackets. It is NOT a measure of lumens, since I do not have a calibrated integrating sphere. Since light decays by an inverse square law, I recommend you look at the "throw" numbers to get a relative sense of what you will see by eye (i.e. a throw value of 50 will appear to cast a beam twice as far as a throw value of 25). That relationship is still not exact (for a variety of technical reasons), but it gives you a general idea.
Lightbox Min and Max: These are the relative output readings from my lightbox. Again, they are not in lumens, since it is not a proper integrating sphere. They are simply there to provide a relative sense of differences between lights, as measured in a milk carton light box. Someone else's lightbox will be different - you can only compare within one given lightbox.
Ceiling Bounce Max: Another relative measure of output, a ceiling bounce is just that - put the light on the floor, shinning up, in a small window-less room with a lux lightmeter beside it on the floor (also pointing up). This gives you a measure of the reflected output of light "integrated" over the whole room. It again does not provide lumens, but gives you another relative output measure. It is also specific to my room - anyone else's ceiling bounce numbers will be different.
I present both lightbox and ceiling bounce numbers to allow you compare relative differences. IMO, the ceiling bounce numbers are more accurate for very powerful (and tightly focused) lights. For lower outputs, I find the lightbox provides a more meaningful relative comparison.
Hope that helps .. :wave: