400 gallon project

[fkshiu]

Originally Posted by JDigital

So what are you thinking Brad... every 9 months for replacement bulbs now? maybe even 6?

What is your lighting schedule like?

Brad and the other purchasers of the PAR meter will be keeping a close eye on our PAR levels over time to determine how quickly PAR levels drop off. It will probably vary somewhat depending on bulb and ballast combos.