When I drop my next sets of seeds, one set of plants will run start to finish under the XB200. I've had mixed results with it, but always healthy plants under it.
Since it will be occupied and eventually on 12/12, I re-rigged my seedling/short-veg area. Two HLG65v2 and a heat mat with thermostat,
I had one board for a photo backdrop. It was kind of scuffed up so I got another.
Little vent hole at the top, a lid out of the leftover, and the new board will just wrap around the front loosely for airflow. And a nozy cat.
I tossed a toy near his second-hand-stoner ass and he just half-way reached for it. Couldn't get it so he lost interest and gave up.