Aloha & Is your 600w HPS dimmable? If you are not using CO2 supplementation you do not need 600w in a 4 x 4 . With too much light and heat the plants have difficult time using. I did a quick calculation and on a 4 x 4 I would run 600w HPS at 70%.
600 Watt HPS at 70% on 120 x 120 (4x4)?
That seems not enough to me.
Most people I know use a 600 Watt on 100x100 cm (approx. 3.3 x 3.3 feet)
And then run it for the full 100%.
Some people use that same 600 Watt also on a 4 x 4 but then they use the booster if they have it.
And I also know a number of people who use a 1000 Watt HPS on a 4 x 4.
They all get about 1 gram per 1 Watt.
All without adding extra CO2.
Aloha & Is your 600w HPS dimmable? If you are not using CO2 supplementation you do not need 600w in a 4 x 4 . With too much light and heat the plants have difficult time using. I did a quick calculation and on a 4 x 4 I would run 600w HPS at 70%.
600 Watt HPS at 70% on 120 x 120 (4x4)?
That seems not enough to me.
Most people I know use a 600 Watt on 100x100 cm (approx. 3.3 x 3.3 feet)
And then run it for the full 100%.
Some people use that same 600 Watt also on a 4 x 4 but then they use the booster if they have it.
And I also know a number of people who use a 1000 Watt HPS on a 4 x 4.
They all get about 1 gram per 1 Watt.
All without adding extra CO2.
Excellent job
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I will elaborate a little on why I do not like Chinese knock offs.
1st. reason, they all claim to use Samsung top bin LEDs, HLG I believe would purchase all the top bins from Samsung so there would not be any left over for the Chinese companies.
2nd. Pricing drops with LEDs when you are happy to purchase the lower bins of LEDs so this enables you to sell cheaper than the original company that they have copied, pricing of LEDs can be 5X cheaper if you use an inferior type and that leaves room for more profit margin even if you sell alot cheaper that the original.
3rd. As they will be using a lower bin that the genuine HLG product this can have an effect on your overall light output by upto 20%, They know in China that the average person can not test the light output so they do not care to sell you an inferior product because you can not tell the difference, even if you own a hand held spectrometer you can not tell the difference and work out the exact difference between a genuine product and something that performs 20% worse than the genuine product because in most cases you will not have a genuine product to compare it to.
4th. Warranty is something that HLG does very well, products can fail and HLG will give excellent customer service if a problem does occur.
5th. I really don't have respect for companies that need to make exact copies of a genuine product and the more people that support knock off companies the less money there is for product innovation from the original company.
Saying all that if your boards use enough electricity they will definitely grow plants and you will probably be happy, just know that you may have a much better result with a genuine product.
