input needed. VHO testing...
Little bit of an update.
After some thought I will now also be meauring the PAR as well as lumens for each ballast. I have ordered a PAR meter and hopefully it will be here in time to start this all at the end of the month.
As well I amlooking into getting a power meter(watts) if anyone has acess to one I could rent for say six months I'd appreciate it.
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