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According to this I would get Result: 1641.34 umol/s Seems a bit unrealistically high. Oh, my bad I was thinking this was ppfd. After HLG calc: 938 PPFD

The article doesn't state how to convert lumens/w to umoles/joules.

Yes.

The problem is that the calculator is asking for efficiency in micromoles / joule, and all I have to work with is lumens / watt. It says to take the value for micromoles / j and multiply it by the wattage to get the PPF. If I instead use the number for lm / w and multiply it by watts the number...

These PPF values are completely dependent on how far the meter is from the light, and as such they are not very valuable alone. Like you said the Gavita DE 1000 is 2100 PPF. But if I'm trying to replace my DE 1000 am I supposed to take that data and match it to an LED. The only relevant data is...

The exact luminous efficacy is easy to calculate, it is given in the datasheet. One strip is 2195 lumens at 700mA and 19.1v. If I run it at 933mA and 19.4v (18.1w), the chart in the datasheet...

That is not correct my friend. You cannot get PPF (which is total photon energy output, or simply light) by only considering efficiency and number of strips. Like I pointed out you could make your strips more efficient by running them at a lower current, which lowers there power output and...

Thanks Cali. So, my strips optimal effiency (@ 700mA) = 164 lm/w. But I'll need to run mine at 933mA= 159 lm/w in order to hit the wattage of 540w people are telling me I need. So, 159 x 30 (strips) = 4770. I plug that into the calculator and get = 2727. That doesn't make sense. The data that...

Thanks. I have been researching my ass off, but realizing that I still need to do more. Before I replace 2 Gavita DE 1000 HPS, and spend twice the money, I want to make sure I get lights that don't lower my yield, or worse, quality. One big plus that I keep coming back to with these strip...

Is it possible to figure out the ppf from the data in the datasheet? which is basically just volts, current, watts, and lumens.

Still trying to figure out best driver and configuration, but I should have started my design with the question in the title in mind. I was going to go with 460w and about 74,400 lumens (according to my led strips data sheet), but the wiring configuration is complicated and will lead to losses...

I'm going with four 2x4 now, per Airwalker's recommendation. If I did that I would have to go with 14 strips per driver instead of 15 (already purchased strips, best price required 20 min order in increments of 20 so I bought 60). Don't really just want to wast the 4. Your hanging job looks good.

Yes, this is what I was planning on doing, but now you've got me concerned about too high a voltage drop. Is that something to worry about? Now I'm thinking it might be best, and simplest, to just use 16 awg for the whole thing. 16 single core is supposed be good for up to 15A.

Makes sense. It also might be easier to hang, I haven't quite figured out how to hang them using those ratcheting hangers. But with 2x4 maybe I could just use 2 hangers (one on each end of the 4 ft). Or do you think that would make it too imbalanced?

I looked at some higher voltage drivers, but given I'm wiring 15 per driver I can't do 2 in series because of the odd number, so would have to do 3 and it did not work out to be a good wattage. I have a room that is about 9x5, so it is still tight but there is a little wiggle room.

I'm using 5 conductor wagos and plan to wire in sets of 3 strips, like this:

Thanks Airwalker, why is that? Easier to move around?

About to purchase my items and just wanted to get a final check to see if I have everything right. Flower space 4x4 x 2 Led Strips - EB Gen 3 2 ft x 60 Driver - HLG-240H-20b x 4. 2 drivers per 30 strips. Configuration - 2 strips mounted on 4 foot aluminum angle. This will give 15 4 footers...

From what I've been hearing from other forums these at low current don't need much of a heatsink. And on the front of the data sheet Bridgelux says "heat-sinking may not be required at low drive currents." And you're below nominal current. But also, and this is what I'm going to do, you can get...

I can only get an A or B on the drivers I want to buy, AB seems to be very rare in stock. For flower room which should I get A or B?