par

I am using HLG600Rspec lights in my 4x4 tents. I have a lux meter, but not a par meter, and have researched the conversion (x0.015), but trying to find more data to verify. I have downloaded all of HLG’s posted PPFD charts at various heights. I’m assuming these are all at full power. Questions...

I have a small 18"×36"×72"tall climate controlled cabinet just wondering what height for seedling/veg/flowering for my 600w galaxyhydro roleandro led light please help thanks

Ok so I’m looking to buy some cobs to replace my HPS I normally run 3x 600w hps. I wanted to replace them with the 600w migro (I know I could use 400 but extra light won’t be such a bad thing) but this light seems pricey so are there any other cobs that can match there performance or better...

In the past few years ppfd has entered into the mainstream as a term that all growers should be familiar with. There's tons of write ups online about optimal ppfd levels, so I'll spare you all with repeating it here. More recently, and with less attention, the topic of DLI has been discussed in...

In the past few years ppfd has entered into the mainstream as a term that all growers should be familiar with. There's tons of write ups online about optimal ppfd levels, so I'll spare you all with repeating it here. More recently, and with less attention, the topic of DLI has been discussed in...

In the past few years ppfd has entered into the mainstream as a term that all growers should be familiar with. There's tons of write ups online about optimal ppfd levels, so I'll spare you all with repeating it here. More recently, and with less attention, the topic of DLI has been discussed in...