Where Can I Find Pin Fin Heatsink for 50w CXB3590s? They're sold out every where.

CobKits

Well-Known Member
i dont intend to. But would it matter if im in legalized rec state and have a medical card? Are they picky about who they sell to or something?
absolutely. they give people in CO static (even though they ship from CO and its full legal)
 

newguy41410

Well-Known Member
Chinese new year starts 1/28
Kingbrite's Alibaba Home Page said:
Dear Valued customers:


Thanks for your support in the past 2016!
We will begin the Spring Festival holiday from 19 Jan, and back to work at 4 Feb.


For any enquiries, pls contact us asap!


Best Regards

KingBrite Team
I guess he's celebrating early and taking a vacation? Oh well, I'll be celebrating with him anyway so i can suppose i can wait til the 4th
 

thetr33man

Well-Known Member
I bought some drivers from them recently. They ask a bunch of questions before you buy. And, I got an email before shipping asking me questions. I forgot you had mentioned them.

Good thing I didn't say anything. I just told her personal projects and please ship ASAP.
"Aquarium lights" Say you are into reefs and inverts...
 

Closet-Gardenholic

Well-Known Member
Hey guys, I am in the market for 20 heatsinks for 20 CXB3590s. I was going to get 120mm versions and purchase from Northerngrowlights.com but they don't have 20 in stock. I also checked cobkits.com and they dont even have one. I dont really like the idea of using Heatsink USAs because theyre large and heavy, even if i do active. I am hoping for a passive solution. cutters heatsinks appear to be pricier than other places except for their iceLED 450 active cooling solution which is only 12 bucks but i dont know if this will suffice or if i will like it. (havent read much about the IceLED 450 here or anywhere else). Not sure if there are other sources to get 120mm Pin Fin heat sinks or if i should wait for them to come back in stock?:(

I don't mind having to drill my own holes if i save a significant amount of money.

any help you guys can give would be greatly appreciated! I'm having a whale of a time just finding each part for my DIY COB build..
Would these work?
http://www.rapidled.com/140mm-pin-heatsink/

This guys been pretty helpful to me over the last couple weeks
 

newguy41410

Well-Known Member

newguy41410

Well-Known Member
"Aquarium lights" Say you are into reefs and inverts...
Just curious what happened with cdiweb, I was considering them as well
Well the heatsinks I want to get from them are called moduLED Mega 13450. They are big enough to cool my needs and only cost 13 bucks! but the data sheet (PDF) mentions it fits CXA25 CXA30 cree led. It mentions just about every cree except the 3590 so I'm worried it might not have the holes drilled for it. I'm pretty sure it does but they don't honor returns or refunds so I want to be sure I can mount my 3590 to it before I spend 300 on heatsinks. I read people say the 9950 heatsink and 9980 heatsink fit the 3590 so I'm pretty sure the 13450 should fit but not sure if I want to shell out 300 to find out

@thetr33man do u think I will have no problem mounting my 3590s to the 13450. I really like that model. I tried email cdi and they said they didnt have the sample on hand to find out for me
 

visajoe1

Well-Known Member
I'm worried it might not have the holes drilled for it.
I'm not sure how many heatsinks you are working with, but hopefully I can ease some anxiety about the holes.

The material most of us work with here for frames and heatsinks is aluminum. Its a soft metal. For the distances we need to drill and tap (short), combined with the weight (heatsinks are light), tapping shouldnt be required on majority of typical builds. Approximately 99%.

If you need to drill and tap a hole for your cob, or to mount the heatsink to a frame, use a 7/64 drill bit and a #6-20 3/8" screw. Zinc plated steel>aluminum all day. If you need tips on how to get the hole placement perfect, or how to drill in aluminum, I can help there too.


If you want to go further into an aluminum piece, these may be more helpful, called cutting/tapping screw

 

Closet-Gardenholic

Well-Known Member
IMG_2029.PNG
The ones I posted are predrilled for a few different COBs. There should still be a way to mount them individually with the flat side mounts.

Shoot an email and see if he can cut you a deal since you are getting 20. Even $1 off each would help lol
 

newguy41410

Well-Known Member
I'm not sure how many heatsinks you are working with, but hopefully I can ease some anxiety about the holes.

The material most of us work with here for frames and heatsinks is aluminum. Its a soft metal. For the distances we need to drill and tap (short), combined with the weight (heatsinks are light), tapping shouldnt be required on majority of typical builds. Approximately 99%.

If you need to drill and tap a hole for your cob, or to mount the heatsink to a frame, use a 7/64 drill bit and a #6-20 3/8" screw. Zinc plated steel>aluminum all day. If you need tips on how to get the hole placement perfect, or how to drill in aluminum, I can help there too.


If you want to go further into an aluminum piece, these may be more helpful, called cutting/tapping screw

I just placed my order on the heatsinks i liked thanks to you. I figure it shouldnt be that hard to drill holes in it now that you mention it. But i was also thinking theres already a bunch of holes in the heatsink.. if for some reason they don't line up properly with my cob holder wouldnt it be easier if i drilled a little hole in the cob holder itself to line with an already existing hole in the heatsink?
 

visajoe1

Well-Known Member
if for some reason they don't line up properly with my cob holder wouldnt it be easier if i drilled a little hole in the cob holder itself to line with an already existing hole in the heatsink?
Happy to help! I completely agree with you, just keep in mind you want the cob to be centered on the heatsink for maximum cooling efficiency.

If you do need to make a hole, place the cob on the sink exactly where you want it, get a phillips screw driver and give it little punch with a hammer where the hole needs to be. It will create a little dent on the sink and guide the drill bit so it doesnt wander. If you need a 2nd hole, secure the cob with a screw into the hole you just created and repeat.

Easy pressure on the bit, slow speed, gradual increase pressure until you see it spiraling and/or chipping. Do not press hard like its wood or plastic, just let the bit do the work. You'll probably be using less than half drill speed. If the drill bit gets full of metal and its not coming out by itself, stop and pick it out, then continue.
 
I still have a box of 1800 active heatsinks (incl. Fan) which I bought in wholesale. I will sell for $2 each, ex shipping. Fyi they work perfectly with cob's driven at 50w.
 
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