Rocket Soul
Well-Known Member
Sounds alright. Go for 3500k rather than 3000k, or even 4000k if thats an option. 120 should be enough, but you need to be able to go down even further, ger an external dimmer, B-type
The Chinese Quantum Board Knock Off Builds
- Thread starter zypheruk
- Start date
Are strips like these any good? And would they require their own heatsink or could 2/3be placed next to each other on
https://www.alibaba.com/product-detail/4ft-Led-Grow-Bar-light-Samsung_62180092894.html?spm=a2700.details.deiletai6.3.7701jdeOjdeOWk&bypass=true
https://www.alibaba.com/product-detail/4ft-Led-Grow-Bar-light-Samsung_62180092894.html?spm=a2700.details.deiletai6.3.7701jdeOjdeOWk&bypass=true
Barristan Whitebeard
Well-Known Member
Even though both of those links mention LM301B (or LM301H) in the product title, it is somewhat confusing because both of the linked strips use LM561C diodes.
Are the LM561C strips the ones you want to buy?
zep_lover
Well-Known Member
how much do you find aluminium backing for?where?i see high prices when i look for aluminium sheet for making lights
Rocket Soul
Well-Known Member
I got a place locally. For 10€ i get a sheet cut to size, 12x40" 3mm thick, plenty of dissipation for 240w. Look for places that do alu for construction. Or scrapp yards. Its fairly possible you wont find them online but in yellow pages. First few places in google searches tend to be expensive. Dont think theres anything good in amazon. If your already down to 60w per board then you dont need much. Some people use baking sheets, like for ovens.
I recommend going for this diy approach, its much more satisfying than just hanging a light.
christopher jordan
Well-Known Member
I buy From Meijiu and got top bin like I paid for.I get it, it's clearer now, so even though samsumg diodes still have the possibility of not being of good quality?
This product is from an ad on aliexpress, i haven't even seen a comment on. But for having an affordable price and being samsung diodes I thought in turn would be useful.
This a profile a seller
YXO YUXINOU Official Store - Amazing products with exclusive discounts on AliExpress
Discover the wide range of from AliExpress Top Seller YXO YUXINOU Official Store.Enjoy ✓Free Shipping Worldwide! ✓Limited Time Sale ✓Easy Return.yxoyuxinou.pt.aliexpress.com
this the board
R$710.52 25% de desconto|Samsung lm301h pode ser escurecido 150w 240 k 3000k/3500k osram 660nm cree ir uv cresce a luz tecnologia quântica conduziu a placa v3 com motorista de meanwell|Luzes LED crescimento plantas| - AliExpress
Compre Fácil, Viva Melhor! Aliexpress.com
Thanks for the clarification, and I'm sorry to bother you.
ClockworkWG
New Member
Krypto Kid
Member
Aluminum baking sheets at Walmart work well. 3 for about $22.
Rocket Soul
Well-Known Member
How do you know? Did you do any tests? Not saying no, i just wanna know if anyone is testing their boards against hlg nowadays w a parmeter. I havent seen anything for like a year.
Krypto Kid
Member
Calling an item by a well known brand name is common practice. If I ask you for a Skilsaw, you know what I mean. Crescent Wrench? Jet Ski? Jacuzzi? Chapstick? Q tips? I could go on and on but I believe that I made my point. I see what you are saying about ripping of HLG but really it is paying homage to the innovator. The term isn't the issue, it's the practice of stealing someone elses design that sucks. Really though once they make one change to the design it becomes a new design and belongs to them.
christopher jordan
Well-Known Member
I have a par meter. How would you know there not.
puffpuffpa55
Member
For anyone thinking about buying. Mine arrived today.
Quality is great. One wire which plugs together. And thats it. Ready to go. !
The potentiometer is already connected and easy to use. The 2 switches control the UV and the IR.
They are very bright, will put them up tomorrow, my plants were switched to flower schedule (12hours) per day a few days ago.
Some photos attached for your reference.
Attachments
Rocket Soul
Well-Known Member
Im not saying theyre not top bin, im saying that nobody have actually established how the china boards measure out against hlg qbs for like a year and im keen on finding out. Has anybody got boards and gear to test this?
Its also worth mentioning what is top bin: its actually a combination of 2 bins: highest flux bin with lowest voltage bin. I think that many times with the bubbers youll actually get top flux bin, or same output as a hlg, but not lowest voltage bin which means a little bit more power usage, like 3-5 % for the same output.
Yes they are bud. Well, they're on the list anyway. Was reading lately and the ratio of efficiency to price makes them a pretty similar outlay to the lm301b it seems. Maybe even a better deal when you factor in price.
What do you think of those anyway?
bigmikey86
Well-Known Member
As rocket said, I did 6 boards for my 4x4. I also agree with rocket in saying you won’t need more than 480w. I had issues with one plant when I got into the 550w range. Kept it at 500w after that.
bigmikey86
Well-Known Member
I haven’t updated my log in a bit, but just to give everyone an idea of China board abilities. I did 2.1 pounds at 500w with 3 plants for my first run with these boards in a 4x4. I have no complaints, no issues, no drama. If anyone is tittering on whether or not to go with King Brite, just do it.
Check out this product on Alibaba.com AppMeijiu 6 Bars Samsung lm301H Osram 660nm Large LED Grow Light, 730nm LG 395nm Full Spectrum LED 600W Grow Light https://app.alibaba.com/dynamiclink?touchId=62413337122&type=product&schema=enalibaba://detail?id=62413337122&ck=share_detail&ck=share_detail&shareScene=buyer
greenmorpho
Active Member
Has anyone tried out this bar set up from KB? Thinking about getting 10 of them, but would want to figure out a way to control them with a controller. It has been a while since I have been on here. My last rooms have been all QB custom builds, but been away from it all for a bit and thinking of trying some of the china setups for my new room.
Any info would be greatly appreciated
Any info would be greatly appreciated