DiY LED - Cree CXA3070
- Thread starter SupraSPL
- Start date
Doer
Well-Known Member
Funny you should mention, I was just looking at these. XLamp® CXA3590
http://www.digikey.com/catalog/en/partgroup/xlamp-cxa3590-leds/46741?mpart=CXA3590-0000-000R00AD27F&vendor=90&WT.z_ref_page_type=PS&WT.z_ref_page_sub_type=PD&WT.z_ref_page_id=PD&WT.z_ref_page_event=DC_Link_Table
http://www.digikey.com/catalog/en/partgroup/xlamp-cxa3590-leds/46741?mpart=CXA3590-0000-000R00AD27F&vendor=90&WT.z_ref_page_type=PS&WT.z_ref_page_sub_type=PD&WT.z_ref_page_id=PD&WT.z_ref_page_event=DC_Link_Table
Scotch089
Well-Known Member
I'm about to go bin hunting for some 4k cxas but before I do I figured I'd post and ask which were most efficient between the 3070s vs. 3590s and by how much? Worth the extra investment?
Have you experimented with 4k vs 5k in veg? Like the look of the 4 more but may grow tighter nodes with less 500-680? Thanks man
EDIT: I found that only the 4k Z2 80CRI 3070s, and z4 75CRI 5k 3070s are available. Between the two I wanna hear votes what you think, people! The low CRI of such a heavier blue cob makes me worry its doubling up on the amount of blue its putting out which pushes me towards the 4000k. Lumens battle is: 7945-8534 (5k) vs. 7390-7938 (4k)
Have you experimented with 4k vs 5k in veg? Like the look of the 4 more but may grow tighter nodes with less 500-680? Thanks man
EDIT: I found that only the 4k Z2 80CRI 3070s, and z4 75CRI 5k 3070s are available. Between the two I wanna hear votes what you think, people! The low CRI of such a heavier blue cob makes me worry its doubling up on the amount of blue its putting out which pushes me towards the 4000k. Lumens battle is: 7945-8534 (5k) vs. 7390-7938 (4k)
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Dloomis514
Well-Known Member
I bet you would be hard pressed to tell the difference between the two.
BeaglesnBlunts
Member
SupraSPL
Well-Known Member
Amelia Liu
http://www.aliexpress.com/item/Freeshipping-1pcs-Cree-XLamp-CXA3070-led-74-117W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip/2052849889.html
Kingbrite - Jerry
http://www.alibaba.com/product-detail/CREE-CXA3590-Original-CREE-CXA-3590_60037039008.html
The CXA3590 3000K CBs are very awesome, where did you find them stocked? Kingbrite didnt let on to me that he had them, or did you mean 5000K?
http://www.aliexpress.com/item/Freeshipping-1pcs-Cree-XLamp-CXA3070-led-74-117W-COB-EasyWhite-5000K-Warm-White-3000K-LED-Chip/2052849889.html
Kingbrite - Jerry
http://www.alibaba.com/product-detail/CREE-CXA3590-Original-CREE-CXA-3590_60037039008.html
The CXA3590 3000K CBs are very awesome, where did you find them stocked? Kingbrite didnt let on to me that he had them, or did you mean 5000K?
BeaglesnBlunts
Member
I'm glad they're still the bees' knees because I'd been building up to the purchase for some time. I got them at kingbrite and unless I was misled they're the 3000k CB. I had arranged the order just after New Years so I may have gotten lucky with stock.
I'm going to run 8 of them at 350mah in a 2x4 with 8x8(or 4x16) inch sections of 4.9" heatsink USA. Powered with a HLG-120H-C350b and a HLG-60H-C350b (a little extra room on this one). I'm hoping four 5 gallon pots will fill a screen in there with half a poodle of lettuce, but next time I will compost more soil.
I'm going to run 8 of them at 350mah in a 2x4 with 8x8(or 4x16) inch sections of 4.9" heatsink USA. Powered with a HLG-120H-C350b and a HLG-60H-C350b (a little extra room on this one). I'm hoping four 5 gallon pots will fill a screen in there with half a poodle of lettuce, but next time I will compost more soil.
SupraSPL
Well-Known Member
yessir
good point, they are a lot cheaper and I wish we could see the spds to compare them
Yes sounds like a very lucky score, 54.6% @ 350mA crazy efficiency for cheap! You downgrade my lamp and @churchhaze lamp to second best ( :crying, kidding...maybe) Making more than twice as much light/W than many commercial lamps, meaning 1/3 the heat!
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medicinehuman
Well-Known Member
I just put in request for 10 CXB3590's 3000k, need to build a really efficient light. See what happens and how much they want for cobs. Probably do a passive cooling light maybe like @BeaglesnBlunts
pepperdust
Well-Known Member
supra,
I noticed that comment above, what have you guys weighted in as a number to what HPS efficiency is, if I can ask ? and is this for the new 400 volt bulbs?
thanks as always, as this section thrives from your knowledge
I noticed that comment above, what have you guys weighted in as a number to what HPS efficiency is, if I can ask ? and is this for the new 400 volt bulbs?
thanks as always, as this section thrives from your knowledge
SupraSPL
Well-Known Member
I estimate 35-36% for standard 600-1000W HPS and ~40% for the 1000W DE HPS, when the bulbs are brand new. Of course they cannot be compared directly, a 600W 35% efficient LED will grow a lot more bud than a 600W HPS. Just how great the difference is is a controversial topic.
@Greengenes707 did an excellent side by side of 600W Apache LED vs 1000W Hortilux HPS, using the same cutting, same air, same ferts etc. The yield was comparable. Those results are a very strong data point in my mind because GG is not bias, just a smart guy looking for results in his jars.
Also worth mentioning, the LED grown weed tested with higher cannabinoids and higher terpenes than the HPS samples. I estimate that Apache LED was in the low-mid 30s in terms of efficiency, so you can extrapolate what a 55% LED will do.
@Greengenes707 did an excellent side by side of 600W Apache LED vs 1000W Hortilux HPS, using the same cutting, same air, same ferts etc. The yield was comparable. Those results are a very strong data point in my mind because GG is not bias, just a smart guy looking for results in his jars.
Also worth mentioning, the LED grown weed tested with higher cannabinoids and higher terpenes than the HPS samples. I estimate that Apache LED was in the low-mid 30s in terms of efficiency, so you can extrapolate what a 55% LED will do.
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alef
Active Member
hi! it will not be enough as the recommendation by Bridgelux is to have 350mA minimum. theriotically it will work but not bright. you can chech newark.com for an alternative as they have good search. i will gonna check too.
alesh
Well-Known Member
What a BS you've just written sir. Of course you can drive Vero10 below 350mA - it will be even more efficient.
Yes, they'll work well.
Greengenes707
Well-Known Member
What about my 6 cxaAD's @700ma I flowered with last run...53.6% efficient plus an hlg powering it. You and church are down the list more than you thought...hahah.
The best part was that though there was a 21g loss in flower weight to the hps...but there was 7.62g more total THC under the LED despite less overall weight. So you could potentially extract more oil off the less weight of the led.
And that there was a terpene not even present in the hps buds that showed up in the led side.
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