02-19-2021, 10:39 AM
Join Date: Apr 2005
Location: Brentwood, CA, USA
iTrader Positive Rating: 100%
| | Re: Replaced lights - how soon until I see a difference?
I suspect this isn't bright enough for a 24 inch distance from the substrate, but I couldn't find data on PAR readings, so I'm not at all sure. Low light could cause just the problem you have.