Just had an extra thought on this, it’s more for my setup but I’m sure others might benefit the details. I have some uva strips that I was using before I got the highlight 420 boards and I kept them in that room. My concern is they’re totalling 16-18w (if I remember correctly) alongside 440w of highlight 420 and 100w in the canopy. The strips are a mix of 385/395/405 and would be adding 3% uva on top of the gen 1 highlights, this now seems like too much uva, especially with already having the pc blue in the 420 boards. From your experience and research, would this be detrimental or within a comfortable range of uva? Or do I overthink everything, probably.
But it's also a true story. At the time, Chinese and Indian hemp seed was testing <0.3% THC in their own countries – which was the initial cut-off limit when industrial hemp legislation was first introduced in my state – but because no-one had experience growing the same strains under the Australian sun, the local farmers soon found out that their crops were exceeding 0.3%, and so they needed to lobby the government to increase the limit due to environmental conditions – namely, the higher UV Index. The limit is now 0.5-1% D9THC, but if you import any seed stock then it needs to have tested at 0.5% or less in the country of origin.
