Zylev

Another ratio worth experimenting with might be to reduce the usage of royal blue since the warm white blue spike may be enough for most varieties. That would simplify the design a bit but on the other hand since the royal blue has such an amazing efficiency (55%). Also, I suspect that the improvement in resin quality may be partially due to the increase in deep blue. As far as reducing the 630nm and using more WW, I don't see why not except that the XPE reds are very efficient (42%). Either way would make for an awesome growing lamp.

Up to this point I have been building the lamps with approximately half red and half deep red, based on the idea that a wider spectrum might reduce the potential for saturation. As you mentioned the WW does have some red output so I took that into consideration and reduced the amount of 630nm.


In the beginning we used only 630nm because there were no deep reds worth mentioning. Once we got some decent deep reds KNNA warned that running deep red without 630nm was problematic and that the 660nm should be balanced with 630nm. I have not done any experimentation regarding red:deep red ratio, but I can say that half and half works very well and I am satisfied that less than half the wattage is required versus a bare 600 HPS (in terms of yield). I also believe that resin is improved over the HPS buds based on running the same cuttings under both conditions.

Hello Zylev. I log in almost everyday lately and I'd be happy to help. Currently there is progress being made thanks to MrFlux. Did you see his thread called CXA analysis? His data helped more accurate estimates of efficiency and we compare XTE vs XML2 vs COB style warm whites.