nxsov180db
Well-Known Member
Better off using strips, the cost of the F series Samsung strips is hard to beat, I get 950ppfd in a 4x4 area with 500 watts.
Diy with arrow
- Thread starter Jonesfamily7715
- Start date
Jonesfamily7715
Well-Known Member
Cxb3050 and cxb3070 deals available at higher quantities some under $1 each definately worth takin a look.
ttystikk
Well-Known Member
Damn, makes me wish I was ready to pull the trigger now!
Jonesfamily7715
Well-Known Member
Or have your own strips built, there are better options than a lm301b/h like these here jb2835. I'd use a g class jb2835 over any 3030 samsung, would make an interesting water cooled project since they can run up to 1.5 watts instead of the usual .5 watts. The same diodes you see on cutter strips here and there I'm surprised you don't see more
ttystikk
Well-Known Member
The issue is lenses. How to protect the chip and direct the light?
Rocket Soul
Well-Known Member
I think the real problem is the amount of distance you need to the cannopy: 0.4-0.8m means really focusing lenses, which i dont have any economically viable option other than cobs with lenses.
Strips work great if you need the opposite: minimising distance between light and cannopy.
Are there any nice priced options to cree nowadays? I dont know the price points of vero, luminus and citizen anymore. Is @CobKits still around?? Can we have an oldtimers party here
?Jonesfamily7715
Well-Known Member
You know, that can be an issue with the domed diodes as well, ive bumped into the light and knocked a dome off a couple times, they still work but the output is all fucked up.
ttystikk
Well-Known Member
This is a robust arrangement with CXB3590 chips and 80 degree glass lenses that met the spec and stood up to overspray and clumsy people like me rubbing my fat ass on them while I'm working lol;
Rocket Soul
Well-Known Member
Have you still got the lenses from before or looking for new?
ttystikk
Well-Known Member
Are you asking me? I haven't disassembled more than a few of my modules so the lenses are still in place.
When I build more modules, I'll want to buy more holders, lenses, wiring, drivers, etc rather than cannibalize what I have. I want to keep the current units intact so I can run head to head comparisons.
ttystikk
Well-Known Member
@Rocket Soul I do intend to go through my modules and do a round of heavy maintenance; removing lenses to clean them inside and out, making some shallow grooves in the aluminum frame for wiring so the lenses sit flat, a bit of silicone sealant to try to make the COBs more water resistant, replacing bad chips and drivers, etc. I invested a great deal of money in these and I need them in good condition!
Jonesfamily7715
Well-Known Member
Where did you get the lenses, I hear you on wanting to preserve the modules, I would to. If
you just keep an eye out you can find a good deal on at least enough 3590's to replace those.
klx
Well-Known Member
Cutter used to ship cobs with matched lenses back in the day. I have a bunch of lenses in my garage for my Vero cobs. I just run them bare
Jonesfamily7715
Well-Known Member
I needed fans so I did a hunt on arrow and found some insanely good deals, they cracked me on tarrifs when I wasn't paying attention. And also a real good deal on xpl2 stars, I don't know how those slipped thru I bought all 195, $0.18 each those are really good diodes 3 watt typical, 170 lm/watt @ 1050ma, 85°c. I'm sure you can get better at 2 watts 25-40°c probably better than most China light mid bin samsung offerings. These newer diodes are unli
I truly am surprised those stars were so cheap , they are newish here's the datasheet
I truly am surprised those stars were so cheap , they are newish here's the datasheet
Jonesfamily7715
Well-Known Member
They also have these 2700k 80 cri xpl2 stars for
$0.38 I think they got 100 and there was no tarrif for the ones I bought
Xpe far red not as good as xpe2 but still way worth this price they are still good far red looking back I shoulda grabbed em up. $0.11 each over 200 in stock good value
$0.38 I think they got 100 and there was no tarrif for the ones I bought
Xpe far red not as good as xpe2 but still way worth this price they are still good far red looking back I shoulda grabbed em up. $0.11 each over 200 in stock good value
Jonesfamily7715
Well-Known Member
And almost forgot to add these xpe2 blue 475nm stars for dirt cheap
Jonesfamily7715
Well-Known Member
Osram 3030 linear 3000k 90cri good strips
Jonesfamily7715
Well-Known Member
The new energy products are worth looking at the part #'s don't always match the led manufacturers so it's difficult but worth it
Found some ir, Luminous and osram starboards
I bought some osram ir starboard for dirt cheap not far red but ir like 850nm and 930nm like $0.08 and $0.10 per star being that cheap I bought 200, 850nm and 100, 930nm there are still more available if anyone interested. I've seen very very few growlights with ir diodes this high NM. Has anyone seen the effects first hand if useless for a grow light I can use them for night vision with my security cameras
Found some ir, Luminous and osram starboards
I bought some osram ir starboard for dirt cheap not far red but ir like 850nm and 930nm like $0.08 and $0.10 per star being that cheap I bought 200, 850nm and 100, 930nm there are still more available if anyone interested. I've seen very very few growlights with ir diodes this high NM. Has anyone seen the effects first hand if useless for a grow light I can use them for night vision with my security cameras
Jonesfamily7715
Well-Known Member
Here's the datasheet for the osram 3030 strips they're osconiq 3030 mid power strips, not bad efficiency especially for 90 cri, the spectrum is far into the red oh and they're $1.56 each 24 left, I bought the 4000k 90 cri strips the 3000k still available
