So leaving the blue lights on didn't effect flowering we think? The plant was effected by just the upper reds though.
If that leaves us looking for a coloured light that doesn't stop flowering, but does plump up buds, I may have something.
I see I have your interest.
A little green light on an ozone generator under a plant, attracted a branch to it. It went unnoticed for some time. This little branch had a terminal bud right against the led that was nothing like the scratch anywhere else. What should of been a bit of air-bud unworthy of trimming, had become a nugget.
One little voice said "well the plant in general was full of flower power, so this little bit didn't matter" but I know you can cover a single branch and it will flower. Flow of chemicals within the plant.. I don't know. I have since then used 100+ green leds (like christmas lights) in a big ball within a plant. It proved green didn't effect flowering, and seemed to have a positive effect. No unexpected nuggets that screamed out at me though. More recent research by others suggests green energy is useful, and if not immediately so, there is a 'pass it on' effect of up-conversion until something useful is made. So I think green light is an energy source that plants can use, and doesn't break the long nights required (it's not a short day plant) for flowering. I can't say that bud developed at night though. Maybe the green was only of use when it was with other colours.
On a different tach, back then I didn't ground my systems. That whole grow was at many thousands of volts. Introduced by the ozone generator at that point. Maybe that was the stimulus that made it outstanding. It's a funny story actually. I'm squinting at a leaf looking for mites one day, when it lifts towards my face, and as it gets to my nose, with me watching all dozeyed. It chucks a lightening bolt at me. Right on the end of my nose! A temporary state of 'wtf' followed, before I figured out that grounding the tank was a good idea.