[OT] Re: https://news.ycombinator.com/item?id=16945325 Sry, I forgot to respond in time. But, I asked them if they'd sell me a set of their Al-core PCB's (about 120$ iirc for 5 boards of VTC) with 1900K VTC, but the told me they wouldn't. As I could not see 1900K listed in the shop, I assume they are not in-stock and we'd have to reach MOQ for custom phosphor mixture run. As they do advertise spectrum-matched plant lighting, I think that is still regular business for them. If you feel like a Kickstarter or so would be worth it, please try to contact me, I'd like to help.