Lovely Job mate , well done, looks nice.
Cheap and Cheerful DIY using Citizen cobs
- Thread starter JorgeGonzales
- Start date
Vonkins
Well-Known Member
Go to 1000 watt clu048 grow. I'm just telling you what the grower told me. Go to that thread and PM him.
are those charts for version 5?
what am i not understanding when people say these are better than Cree? The efficiency just isn't there
that sounds bad, were you able to fix that or is that game over for the cob? asking because im having some doubt if I should use holder or solder
nevergoodenuf
Well-Known Member
I threw a holder over it and it is still working. If you solder, you need a good soldering iron and make sure the tip is very clean. I like to use the thinnest solder I can find. If you aren't sure about the holders, talk to the tech guys at Citizen or CDIweb.com.
JorgeGonzales
Well-Known Member
I would consider those tables very accurate for wattage and voltage, conservative for lumen/PPF output and efficiency based on what we've seen so far from real-world measurements.
Let me add that comparing strictly datasheets, a CD bin 3590 makes 12500 lumens midway to the next bin at 86.4W Tj=85C, so 144lm/W. 1825 3500K is 160 lm/W making 12500 lumens.
Comparing lumens isn't ideal, but you get the point. SupraSPLs spreadsheets were based on empirical data, so are the comparisons of Cree to Citizen. @Malocan probably has the most thorough comparison between two cobs at 3 wattages, averaging PPFD over 49 points, and the 2700K 90CRI 1825 has a higher average PPFD than the 3500K 80 CRI Cree, which is an impressive showing.
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nevergoodenuf
Well-Known Member
I have gotten use to soldering 14 gauge wire to an 1/8" thic k COB for the last few months
. Compare to a Luna 300 it is an egg shell.
. Compare to a Luna 300 it is an egg shell.
JorgeGonzales
Well-Known Member
You know, that's actually a worst case scenario, so I feel your pain. Thick wire is a bitch to heat up, you need a serious iron, and a serious tip, with serious heat moving fast, or yeah, it could grab and pull it up.I have gotten use to soldering 14 gauge wire to an 1/8" thic k COB for the last few months
I take back what I said, sorry!
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thanks for the tips. i normally (pcbs) use 1mm because the 0.5mm burns up so fast
no optics for the holder?
MrTwist1
Well-Known Member
He is using 1212s lol
MrTwist1
Well-Known Member
The very first post in that thread talks about how this is the first time he has run these 1212's so he's just estimating yield based on past runs with other COBs from what I can see. He also runs a perpetual which is slightly different than a full run because of the way it uses the space.
Although his thread looks great, it certainly does not show 5-6lbs per run with 1000W 1212s. Don't get me wrong - I would like to be surprised, but it seems we are not quite at 2.5g/w quite yet
BM9AGS
Well-Known Member
I'll take 10 in lower k
BOBBY_G
Well-Known Member
i didnt mount them. heatsinks just sit in there. can use them with any mounted chip i want with the wagos - double up my driver utility!
Johnnycannaseed1
Well-Known Member
Just Googled the above.... sweet looking soldering irons very nice
JorgeGonzales
Well-Known Member
Hakko and Weller are pretty much where it's at for the ~$100 soldering station, and both are worth every penny. I've had my Hakko 936 for about decade now.
sixstring2112
Well-Known Member
so you really do have some cobs lmao.for the love of god bobby,take the stickerz off those heatsinks,ya cant send em back now hahaha.
i to like weller for soldering stuff,although i aint got no dang fancy shmancy digital iron.just the trusty ole 50w plug it in and burn yer fingers style
sixstring2112
Well-Known Member
you should repost that pic in the "if your new to led and what help " thread lol.i bout spilled my mocha when i seen that shit
