Thanks Jon - you’ve piqued my curiosity with your posts, leading to these crop comparisons.
On page 1, I had a picture of my living room of Nichia 219b 4500k vs E21a 4500k, showing the two LED’s are for all practical purposes identical. The only difference being E21a is always dimmer than 219b during a run-down from Turbo. I jacked up the thermal limit of the E21a to 60 C, and it’s still dimmer.
Now here’s the lavender crop, showing PERFECT rendition of the lavender plant. The colors are so close I had to go back and forth several times to make sure I didn’t just post the same picture, proving again the only thing that could look like a Nichia, is another Nichia. Albeit NOT as bright. At any rate, unless there is some other reason I don’t know about, IMHO E21a is one I would bypass on if I already have 219b.