DIY LED Help

DonPetro · Sep 26, 2014

guod said:
Product Reviews

"This works so well on my 'garden clippers' it helps keep the spring working freely
I've used it on squeaky hinges on all sorts of things including garden gates, doors, car doors, mower parts, etc etc

A little goes a long long way "

http://www.fasttech.com/reviews/1290510/85898

Thats what sold me on it! Haha.

DonPetro · Sep 27, 2014

Hey guys...gotta question. I was looking at the luminus cxm18-30 data sheet and its rated for 800mA. I want to go with a mean well driver naturally but having a hard time matching one up. Could i drive it at 700mA or would i be better of going with 1A? Not sure if my budget will allow the cxm27-30 but might just say f*ck it anyway. Just want to have a budgetary back-up.

DonPetro · Sep 28, 2014

DonPetro said:
Hey guys...gotta question. I was looking at the luminus cxm18-30 data sheet and its rated for 800mA. I want to go with a mean well driver naturally but having a hard time matching one up. Could i drive it at 700mA or would i be better of going with 1A? Not sure if my budget will allow the cxm27-30 but might just say f*ck it anyway. Just want to have a budgetary back-up.

guod · Sep 28, 2014

up to 1.6A if you have the skills to cool that

DonPetro · Sep 28, 2014

guod said:
up to 1.6A if you have the skills to cool that

View attachment 3263213

Alright but 700mA or 1A? Its going on an arctic alpine 11.

Positivity · Sep 28, 2014

How much watts do want to come out of it?

A CPU cooler could probably handle 1.4a I'd think...

But if you don't need that much power out of it 1a is a nice balance of heat and power. 700ma would be underpowered on a CPU cooler IMO

churchhaze · Sep 28, 2014

I think if you want to drive it harder, you should be picking a bigger array.

churchhaze · Sep 28, 2014

The problem with running it at 700mA x 35V is that 24.5W doesn't warrant the apline 11 heatsink. Also, the base of the apline 11 has a small footprint, and only allows 1 cob.

If you wanted to use cxm-18, I'd get a custom heatsink from heatsink usa that's meant to fit 2 of them, then get a driver that supports 70V at 700mA and put them in series. Then you have a 50W array with pretty good efficiency.

churchhaze · Sep 28, 2014

Or you could get 4 of them, get a 143V max driver at 700mA!

That'd actually be a good design I think.

churchhaze · Sep 28, 2014

HVGC-100-700A
700mA 142V max

http://ca.mouser.com/ProductDetail/Mean-Well/HVGC-100-700A/?qs=sGAEpiMZZMvV8Y9YugmIgibIJ7VYpY3HtBfiQiYGGFw=

I might steal your idea and base something off these!

This would also make the driver compatible with a lot of monos out there.

DonPetro · Sep 28, 2014

Well i plan to build one unit at a time. (Heatsink/fan, cob, driver) Then strap them together as i build them.

DonPetro · Sep 28, 2014

http://www.newegg.ca/Product/Product.aspx?Item=N82E16835186070
http://www.digikey.com/product-search/en?mpart=BXRC-30E4000-F-03&vendor=976
http://m.ebay.ca/itm/111252011567?nav=WATCHING_ACTIVE
This is the combo im thinking of going with.

churchhaze · Sep 28, 2014

If you're going to use an artic 11, why not just use vero 29?

the vero 18 at 1A x 30V is 30W. Those artic 11's are beastly in the amount of heat they can dissipate. Even with the fan off, at 1.4A, they will only get uncomfortably hot, not blistering hot! or house burning hot. (50W at 1.4A, a little less than 40W at 1050mA)

Positivity · Sep 28, 2014

Arctic 11....$13
Vero 18.....$14
35w driver.....$20
30w for $47

Arctic 11....$13
Vero 29...$30
90w 1.88a dimmable by resistor driver....$45

http://www.trcelectronics.com/View/Mean-Well/LPF-90D-48.shtml

70w for $88. But more useful range of power..clone thru flower....I'd like to try something like that personally.

DonPetro · Sep 28, 2014

Do i need to use a lense or could i get by without? Anyone recommend using the molex cables for the veros?

Positivity · Sep 28, 2014

I'd worry about a lens after you've built a few..everyone's doing well without them

Don't know much about molex wires..sorry

churchhaze · Sep 28, 2014

The output pattern from these cobs is really great. A few people use reflectors with their cobs, but most agree that lenses are no good because they attenuate light and store heat between the lens and the cob.

I think we've already seen a cob explode from using a lens here once. No-one likes fried eggs.

DonPetro · Sep 28, 2014

Positivity said:
I'd worry about a lens after you've built a few..everyone's doing well without them

Don't know much about molex wires..sorry

Right on. I'm really excited to do this and i thank you guys for all your help. Im sure i'll need more.

AquariusPanta · Sep 28, 2014

guod said:
Product Reviews

"This works so well on my 'garden clippers' it helps keep the spring working freely
I've used it on squeaky hinges on all sorts of things including garden gates, doors, car doors, mower parts, etc etc

A little goes a long long way "

http://www.fasttech.com/reviews/1290510/85898

lmao

Positivity · Sep 28, 2014

DonPetro said:
Right on. I'm really excited to do this and i thank you guys for all your help. Im sure i'll need more.

Nice CPU heatsink...nice vero led....nice meanwell driver

Don't skimp on the thermal paste...

http://www.amazon.com/Prolimatech-PK-3-Aluminium-Compound-5g/dp/B008M5157W/ref=sr_1_2?ie=UTF8&qid=1411952170&sr=8-2&keywords=Pk3+prolimatech

Use the other stuff on your bike... :mrgreen:

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