Mrgoodsusa
Member
Thanks manAt 3500k, Samsung H inFlux strips (lm301b) are 182 lm/w and eb2 are 175lm/w, about 4%.
Thanks manAt 3500k, Samsung H inFlux strips (lm301b) are 182 lm/w and eb2 are 175lm/w, about 4%.
Thats really nice and no doubt shoold give some crazy growth. How bigs your space? I would advice to check with a par meter for evenness of intensity; the whites look evenly distributed (id try to make emphasis on sides as middle allways get extra cross light) but the qb18s look a bit concentrated in the middle. But in the end your plants will tell you. But keep in mind, if you have any problems, that it might be a bit centre focused. If you post your grow tag meJust finished up. Absolutely gorgeous light.
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*I haven’t read the thread yet. Will do in a bit.
Uv seems to have 2 points where its extra plat active: 285ish and 360ish. Its not only for thc, its also good for plant transpiration and general plant health but dont over do it.It’s hard to edit the post above with all the pics in the way.
The hlg Q18 boards are driven in parallel by an hlg-100h-24
The UV driven in series by Recom RACD12-500-LP.
I know I may get some questioning and hating on the UVA choice but I have run UV in the form of reptile fluorescence for many years. I have seen their advantage and since they mostly only emit uva I decided to go with these stars. All the research I’ve done in the past suggested it was these two wavelengths that where most beneficial. There is a lot of newer research on uvb now but I’m not sold and will be watching. I may add some later.
for sure. That’s why there is only the four stars. They don’t need much at all. They are timed as I have always timed them. 15m @ lights on, mid and lights off.Uv seems to have 2 points where its extra plat active: 285ish and 360ish. Its not only for thc, its also good for plant transpiration and general plant health but dont over do it.
I think you can probably extend the uv a bit more, its a pity having it and not using it. Ive seen nachoo build up up to 3 hours of uvb and all day uva. It seems you have a lot of wattage in a 3x3.for sure. That’s why there is only the four stars. They don’t need much at all. They are timed as I have always timed them. 15m @ lights on, mid and lights off.
the whites are evenly spread at 70mm apart. The reds evenly spread from center. The space is 3x3 and the light is 3x3. There is a slight ~5mm offset where the channeling for the larger driver sits but not enough to really notice.
the uv stars are also at a foot apart on the x/y and wavelengths staggered.
You're welcome. That is a really nice build!I’d also like to say thanks to @CaliWorthington and @Rocket Soul among a few others For their polite sharing of information direct and indirectly. If it wasn’t for this LED community here on RIU I would not have taken the dive into LED. I have been watching the LED section since before my join date, keen on replacing the burdensome chore of other HID systems and all their baggage.
i definitely will build up but these poor cuts I have been holding back light and nutrients and putting them through a lot while waiting to get my light supplies. I’m gently introducing them to the LED’s.I think you can probably extend the uv a bit more, its a pity having it and not using it. Ive seen nachoo build up up to 3 hours of uvb and all day uva. It seems you have a lot of wattage in a 3x3.
Very niceJust finished up. Absolutely gorgeous light.
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*I haven’t read the thread yet. Will do in a bit.
So far so good. Just flipped the glue last week. Plants loved it in veg. Now we will have to see if it’s got what it’s takes to pound out nice flower. I’ll post picks in September when they’re done.Very nice
Sorry I didn't reply, been logged out for a while I guess. I pretty much built the system that @Randomblame suggested for me. That build uses parallel wiring. If you wanted to do something like that, I would choose an HLG-320H-48B. If one strip were to stop working, 6.7 amps divided by 5 strips is 1.34A, and these strips go up to 1.38A, so the other 5 strips would be safe. If two strips fail it might cook them all.Hey @CaliWorthington, I bought six of those Arrow strips when they were in stock. Now that I have some time I want to build a new rack for a 4’x2‘ tent. Which driver would max out the power of each strip?
Also, could you or anyone else suggest supplemental lights to help fill the tent. That would really be appreciated.
poly
They are still $5 a strip after tariffs. Damn taxes on trade$5 strips? Ha! Arrow has them for $2.61 per strip ATM.
Anybody wanting to build a cheap light you probably aren't going to find them any cheaper.