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Hey guys, I have two questions. If a formula contains 49.803ppm of P, And all that P comes from monopotassium phosphate, 1. How many PPM of K are there? 2. How many grams of monopotassium phosphate is there? Thanks :)

ive built a couple hlg qb setups that each pull 920w on 120v with 12x qb288v2 @ 1400ma, and I have a couple spydrx+ nothing against the qbs but my next 64 lights are going to be all the new spydrx 2i (the 1700ppf one) for a few reasons 1. no building involved, ease of install, ready to hang...

I understand the 75-80% thing, but I don't understand how you got up to 80 amps. 70 *.75 is 52.5. 52.6 is the draw for 20 lights @ 2.63amps each which is 75.14% of a 70a breaker, which should be fine.... on to the next question though, how do you do it without using an expensive light controller?

ok so 20 lights @ 2.63amps each is 52.6 amps. I guess a 60 amp breaker is too small and I should get a 70. Now do I have to spend $1400 on a titan 24 light controller or is there a cheaper alternative?

Hey guys.... I'm looking to wire up multiple rooms with a number of different lights including the new spydrs, and custom plc strip builds. Both the fluence and the custom lights will be a maximum of 3A each on 240v. When wiring these lights up, whats the cleanest way to do it? I have one...

yeah I stated in the first post that efficiency was low and price was high. the reason I started the thread was more from an interest in their spectrum and why its marketed as a veg light when it has such a high spike in 660nm. also using UV for a "veg" light... just made me curious....

https://eyehortilux.com/grow-light-systems/led-240-r-grow-light-system/ 240w ufo style 4000k + 410nm, 450nm, 660nm, 730nm seems like a very similar spectrum to the chilled boards which I think are 3000k + 400 + 450 + 630 + 660 they are marketing it as a veg light but I don't see why the...

well the way I see it is that you want to either match or beat the 900 ppfd that de hps would give you... and im a bit ocd when it comes to layout of the boards so I have in mind only a few diff configs. per 4x4 tray (really 5x5 of canopy the way you described it) 4 boards would be 2 boards x 2...

that's what I thought, but someone told me that the 5-15p plug can only handle 125v max and that the contacts are made from different material in a 6-15p

Ok so I have an autopilot 8-light controller that is wired 240v. This controller can be wired in either 120v or 240v. and it has female plugs for your lights that will accept either the 5-15p (standard 120v) male, or the 6-15p (standard 240v) male. I puchased a spydrx+ from my local shop and...

I don't know how to do that

sooooo if the boards are running @ 1400ma and 66.78w per board x 12 boards = 801.36w total at the boards, and the killawatt is reading 920w, does that mean 801.36 / 920 = 87% ? so then if im getting 66.78w x 12 x 2.77 = 2219 ppf. then divide that by 920w actual draw to get a 2.41 system level...

@GBAUTO hey thanks that did the trick. btw, what is an IC? @nfhiggs so now at full blast its pulling ~925watts on 120v AC. is it just me or is that like way higher than it should be? is there a 240v killawatt? if I plug the light into the 120v killawatt and dial it down to lets say 750w...

Ok so I just finished building my qb setup. 12x qb288v2 on 3x hlg-320h-c1400b (single fixture for a 4.3' x 4.3') 12 qb288v2's @ 1400ma should be 12*66.78 = 801.36w I've wired the power cords together, and I've wired the dimming leads together. I had a 25k ohm pot laying around so I wired it...

I got 1200g of gg#4 with my first run under the spydrx+, far from a perfect run... jacks 321/mammoth/fluvic, 1500co2, 12/12, 67 days, 75* 55rh, flood+drain with ~72* water. in a room full of gravitas which is why I kept it 75* if any light is going to do 3+ it its going to be my freshly built...

https://www.meanwell.com/Upload/PDF/LED_EN.pdf I was just reading thru the meanwell installation manual and I came across the chart on the 3rd page it lists the HLG series for "The maximum number of the LED PSUs that can be connected to a circuit breaker at 230V is shown as below" My first bit...

Hey guys i was wondering lets say there was an issue with your a/c so you dim your lights down just to keep the 12/12 cycle going, how low can you go before its not even helping you? Like if you had an hlg 550 light or a spydrx+ over a 4x4, could you dim it down to 50w and it would be enough to...

Ok so that website uaac.us has three different types of aluminum in the size that I want. (.75"x.75"x48", 1/16" thick) Here are my options with total price for the quantity I need 1- Aluminum Architectural Angle : 6063-T5 type aluminum. $78 2- 3003 type aluminum angle : $61.20 3- Aluminum...

yeah I just went to HD to get a feel for the different options. im going to contact a local warehouse service center for purchase though

I went to HD today just to check out the different options. 1/8" and 1/16" flat bars have way too much flex imo. however I think the 1/8" is overkill for the angle. 1/16" seems like it would be plenty sturdy and save some $ and be lighter and easier to handle. when it comes to 3/4" vs 1" vs...