I'm using 1/4" plexi to separate mine
Cabinet runs about 7 degrees cooler with the plexi in place - more than makes up for the maybe 20-30 lumens lost...
You're going to loose some lumens anytime you put anything between the bulbs and plants... That said... I'm using 1/4" plexi to separate mine - plexi/acrylic is more efficient as a separation than glass (doesn't allow the heat to radiate through as much). I think the loss of a few lumens (we're talking minimal %ages here) is more than compensated by the reduced cooling needs...
Cabinet runs about 7 degrees cooler with the plexi in place - more than makes up for the maybe 20-30 lumens lost...
recycled it... so no clue... I've still got a few big hunks sitting here - how much do ya need?
Typically Acrylic and plexi can easily be sourced locally - sign shops, GE plastics, etc all tend to have sheets available
You'll find this with just about every type of Fluoro. No matter what the listed spectrum is... it's only a spike.Ok just looking at SunPaq's literature their 10k bulbs hit hard right around 450nm which seems good except that it's a massive peak. There's a big valley on either side of that peak. The rest of the spectrum produced by the bulb looks good for growth though.