About to order diy cob for the first time and from KingBrite.

Hi RIU!
About to take first steps with leds. Would like some assurance that everything is on point. Have been looking from RIU,Growmau5 videos to gather some knowledge to build my first very own light.

I'm from Europe so it's hard to find good place with predrilled heatsinks, KingBrite name got tossed around on the forums so I hope it's a reputable place to get the parts. I haven't placed the order or contacted them yet, wanted some veteran input first.

So I'm planning to build 5 CREE cxb3590 3500k running at 50W 1400ma.

Parts and links
MeanWell HLG 240H-C1400B
https://www.alibaba.com/product-detail/HLG-240H-C1400B-Original-Mean-Well_60470835156.html
5x CREE CXB3590 3500K CB
https://www.alibaba.com/product-detail/CREE-CXB3590-original-Cree-COB-led_60271660846.html
5x Led holder and connector
https://www.alibaba.com/product-detail/Led-holder-with-connector-Ideal-50_60259204540.html
5x Pre tapped 150mm pin fin heatsinks
https://www.alibaba.com/product-detail/Newest-150mm-pre-drilled-heat-sink_60492405353.html
5x Reflectors
https://www.alibaba.com/product-detail/KB-D82-90RF-LED-Reflector-for_60412283912.html
Thermal tape
https://www.alibaba.com/product-detail/Thermal-adhesive-tape-for-cxb3590_60493066188.html

What do You think? Am I missing something or have I got something wrong?

Much thanks
DS

Looks right to me. You really dont need the thermal tape, just alittle thermal compound under each one is fine.
Its going to be a high voltage setup so make sure everything wired and grounded properly. 179v at 1.5a will light you up.
Good Luck

Hey, good spot Boatguy. If you're gonna use holders, just use some good-quality thermal paste. Arctic Silver, etc.

I found out thru trial and error that COB holders don't push down as vigorously as CPU heatsinks do. CPU heatsinks use springs to create downward force. They tend to squish the paste into the voids as the paste heats up the first few times. COB holders don't push downward very much at all. Because of that, it's important to spread the paste thinly and evenly.

Oh thanks, good to know

Btw does this dimmer go ok with that driver?
https://m.alibaba.com/product/60577810277/DC-316X-R-led-dimmer-switch.html?spm=a2706.8162019.0.0.OFdI9j

Use a 100K Linear Poti with a 10K Resistor for 10-100% Dimming

I just received my order from kingbriteled. Received in 3 days (eu), awesome.

Btw I got some thermal adhesive, not paste, to attach cobs to heatsinks. I don't have t paste anymore at home. Do you think it will be a problem if I sue that blue adhesive?

Whats the price on the cxb3590 these days?

I've used their blue thermal tape for 1 round already and they were fine

benbud89 said:

Whats the price on the cxb3590 these days?

Click to expand...

33 usd

Nutria said:

I just received my order from kingbriteled. Received in 3 days (eu), awesome

Click to expand...

Nice, damn thats quick.

So far communication has been with them awesome. Atm cobs got out of stock but in monday they're restocking.

Btw out of curiosity can the driver be used without dimmer?

of course it can, it would go at it's maximum. It's been 3 days since I buy to kingbrite, they are fucking cheap. can't wait to receive my parcel !

french-guy said:

of course it can, it would go at it's maximum. It's been 3 days since I buy to kingbrite, they are fucking cheap. can't wait to receive my parcel !

Click to expand...

How much is cheap.? Trying to get a full cob light pre-made in U.S. ( I'm in uk) no international orders from there yet. I'm also willing to buy kit and have a friend make me it as I'd probably fk it up.! Any info for uk guy much appreciated. Happy growing
Gaz

Gaz29 said:

How much is cheap.? Trying to get a full cob light pre-made in U.S. ( I'm in uk) no international orders from there yet. I'm also willing to buy kit and have a friend make me it as I'd probably fk it up.! Any info for uk guy much appreciated. Happy growing
Gaz

Click to expand...

hi, this is what i get for my build:
CLU048-1212C4-353M2K1: $10.35usd/pcs
HLG-185H-C1050A: $44.5usd/pcs
LPC-60-1400: $13.0usd/pcs
heatsink Φ133*H70mm(for 50-65W): $10.5usd/pcs
Thermal tape: $0.3usd/pcs
ideal holder for CLUo48, unit price is $2.8usd/pcs
Wago connector 221-412: $0.3usd/pcs
screw, led cable : free
shipping depends on weight 70usd with 5 heatsinks

Dscorpion, is that with the holders, reflectors and everything?

Gaz29 said:

How much is cheap.? Trying to get a full cob light pre-made in U.S. ( I'm in uk) no international orders from there yet. I'm also willing to buy kit and have a friend make me it as I'd probably fk it up.! Any info for uk guy much appreciated. Happy growing
Gaz

Click to expand...

Who you trying to buy from that don't do international orders? I know northerngrowlights do. I thought all the guys on here did.

i have used king brite three times.no problems except if you dont ask for the screws and wire when you order you wont get them!
i made 4 cob lights with the 185h1400 drivers.i used that exact dimmer on the last 8 lights i built.
i really like the lens instead of the reflectors.i like the protection they offer.
these lights are easy to build.aluminium angle for the frame .
tried uploading a pic to show my lights but not working.
i used thermal paste on my first 5 lights and the thermal tape on the last 8.the tape is easier and less messy.no problems with either yet and some lights are now a year and a half old

benbud89 said:

Dscorpion, is that with the holders, reflectors and everything?

Click to expand...

5pcs Cree CXB3590 3500K CD bin (36V), CXB3590-0000-000N0HCD35G,unit price: 33usd/pcs;
5pcs Led holder: Ideal 50-2303CR, 2.8usd/pcs;
5pcs Led adaptor: 50-2300AN: 1.0usd/pcs;
5pcs Led reflector: KB-D82-90RF: 0.8usd/pcs;
Led driver MeanWell HLG-240H-C1400B, unit price: 65usd/set.
5pcs 133mm heatsinks predrilled for cxb3590: 10.5usd/pcs;



Shipping cost (about 5.5kg): 56usd by DHL. It takes about 4-6 days.
Paypal Charge 4.5%.

So the total cost: 377.77usd (pay by paypal)

coreywebster said:

Who you trying to buy from that don't do international orders? I know northerngrowlights do. I thought all the guys on here did.

Click to expand...

Timber.. Pulled the trigger on just a Cree 100w ,but I was wanting the plug n play..framework too. Can't diy cobs myself..
Anyone selling pre-made cobs in uk will do great..! Happy growing
Gaz

Gaz29 said:

Timber.. Pulled the trigger on just a Cree 100w ,but I was wanting the plug n play..framework too. Can't diy cobs myself..
Anyone selling pre-made cobs in uk will do great..! Happy growing
Gaz

Click to expand...

AH crazy, as if they don't ship international.. Maybe its the bulk that's stopping them, you would think the frame could be sent in its parts and assembled later, it would only be a few screws and a couple of nuts and bolts.
Hope you see great results with your purchase.
Yeah we are crying out for a UK vendor. Even just a dude selling pin heat sinks on ebay would be good. Or a proper heat sink profile like heatsinkusa do.

Take it easy.
C.W

i ordered my COB LEDs from cutter.com.au. I was planning to order from Kingbrite but they were on vacation for Chinese New year. Anyway, when kingbrite came back from vacation the total pricing he quoted me for every thing was more expensive than what I paid for my COB LEDs from Cutter. The shipping is what drove the total so high. Glad i went with CUtter. Got my drivers from arrow electronics for 50 dollars.

I think I've seen some light engines with 1212(or 1812)on eBay. The seller was from Germany I guess...