Hi djozz, regarding your 219B in the graph I see it hitting 600 lumens around 2.7A.
In your older test of the 219B here it is maxed out just under 600 lumens around 4A.
Is that because older graph shows lumen values with reflector losses and the graph on in this thread is lumen value without reflector?
Just to be clear these were the same binned HCRI 219B?
Thanks for your awesome work!