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you will surely want to go with stripes with your height your budget is a bit short for 4 QB288v2 and is not ideal with your height, QB304 can be a option they are cheaper have a look at this link you have some strip build http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/

4 Zeus XT 1,9a / 4x4 space box temp 22°C Outside temp 20°C After 18 hours boards are just lukewarm "First test" ^^ with hs1010 luxemeter ~15euro 4 Zeus XT 1,9a~300w 40 cm / 24 000 lm all space 400w mh lumatek with old aaw 40cm 12000 lm under the bulb I ll add reds later 8 Osram square 660...

it looks like a candy shop^^ Can I ask you why curing fridge ?

OK thanks i see what you mean so two steps with LCM-40 (2s2p) and only 350ma ~ 28w (4s) not that good ^^. HLG pilots seem to be more adapted to my situation I just sent an email to ask them.

Hello Thanks for you help with drivers I'm happy with the price, cheaper than mono on pcb and no wire everywhere. I had the confirmation they are constant current, no response about the resistors. I will not drive them over 700ma, I only have the pdf files to measure the amount of reds and...

I just asked the question to led-tech to be sur, I will surely have an answer tomorrow

It cost me 128 euro 4x30euro/strip and 8 euro shipping cost They need constant curent 350ma typ/1000ma max Led-tech recommanded me lcm40 (they add pay attention to high load for the LCM to reach a good efficiency^^)

Yes from led-tech.de I asked for custom strip, it cost me an extra 5 euro/strip I asked to customize from this model https://www.led-tech.de/de/50cm-Osram-SSL-Horticulture-Plug-Grow-Streifen

Hey Guys I just received my reds Four 50cm/2ft grow strips 10 led/strip 8 x Osram Square 660nm 2 x Osram oslon ssl 150 730nm I am still far from 90μMol/s 730nm ...

thank you very much you help me a lot, I really do not want to disassemble the frame once in place, it would be a mess^^ I will change my setting, I ordered a luxmeter but I will not receive it for a few weeks.

I’m actually building a fram with four ZEUS XT (29,5x44,5cm/308lm301b) for a 4x4 space orca tent, I thought to operate the boards 10cm from walls, let 40cm space in the middle to balance the distribution. As I understand it, by doing this I'm just going to lose light on the walls? so it is...

Qb connectors are rated 300v/9a

Wire and connectors are usually 300v Max

I am curious to see how will behave this Colombian gold, stretch and flowering must be endless

HLG-40 48/54 looks fine ip65 / 67, 7 years warranty against 3 years for lcm-40. HLG- is less flexible because of constant curent region but more efficient, is 88% efficiency at 50% load, best LCM-40 curve is 85% at same load. LCM-40 keep the lead at 500/600/700ma full load 91% efficiency 2/100v...

lcm-40 loses 2/3% efficiency at 350ma and 1050ma

are there CoBs more effective than nichia 757 v2 / v3 or lm301b?

Hey i need little help I ordered today four 50cm custom grow strip, 10 led per strip with 8 osram square 660nm 1.95 v at 350ma and two ssl 120 730nm 1.85v at 350ma. https://www.led-tech.de/de/50cm-Osram-SSL-Horticulture-Plug-Grow-Streifen it gives 19,3v per strip at 350ma = 6,755w, I am...

I will go with 630/730 nm it will cost me an arm, about the price of two extra boards. I will be able to save about twenty euros using strips ssl 120 660nm 355mw at 350ma, But Oslon square is 455mw at 350ma 2,47um / s. https://www.led-tech.de/de/Osram-OSLON-Square-hyper-red-auf-SYSTEM-Slider I...

I have not tried molasses yet (I did not know about milk thx^^), but I think about it. I am going to equip myself for TCO / TCAA without adding nutrients but for inoculation microbial life (which is fragile ^^) about 3/4 weeks after the last potting. I would see if the results are beneficial...