what is a cheap way to mount these suckers, cheapest i can get aluminium angle is $40 per 6.5 metres, would cost me like $60-70 per frame, i ordered the samsung 2 foot strips, single and double row strips which are approx 16mm and 40mm wide respectively, ive looked at flat aluminium sheets wich are 1.2metre x 2.4 metre lengths which cost around $80 each, i just need to cut those down to 600mm x 800mm or something similar, but would cost me $20-25 each for 4 heatsinks, anyone have suggestions? > i plan to run these fairly soft so wont need anything overkill <
Samsung H series strips, Arrow seems to be blowing them out! what a deal!
- Thread starter haze010
- Start date
haze010
Well-Known Member
Thanks prawn, you did a much better explanation of what i was trying to say.
This probably wont work for your space but this is the same thing i ran into of frame cost and what i did. I was making lights that were 2x2 each so i just did the frame in an H shape and ran the strips accross it. Its dark time right now or id take a pic for you, heres a really bad doodle of it.
Four frames used a little less than 36feet of aluminum. Not sure on angle pricing today but that pricing seems high. If you go to a metal recycler/wholesaler type place you will get a better price than a home depot type store. I got mine thru https://www.metalsupermarkets.com/ it was the cheapest i found near me and they are all over north america. Also where you arent using it to dissapate heat, you could go with a cheaper metal alloy if they have something that works and is less expensive as long as its not too heavy.
Hope that helps in some way.
This probably wont work for your space but this is the same thing i ran into of frame cost and what i did. I was making lights that were 2x2 each so i just did the frame in an H shape and ran the strips accross it. Its dark time right now or id take a pic for you, heres a really bad doodle of it.
Four frames used a little less than 36feet of aluminum. Not sure on angle pricing today but that pricing seems high. If you go to a metal recycler/wholesaler type place you will get a better price than a home depot type store. I got mine thru https://www.metalsupermarkets.com/ it was the cheapest i found near me and they are all over north america. Also where you arent using it to dissapate heat, you could go with a cheaper metal alloy if they have something that works and is less expensive as long as its not too heavy.
Hope that helps in some way.
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Barristan Whitebeard
Well-Known Member
Hey Prawn Connery. According to the datasheets, the PCBs for the Samsung F-Series Gen. 3 and H-Series strips are made from the same materials. The H inFlux strips are the ones to incorporate an aluminum PCB.
With that being said, I've seen people on this forum say that the double row F-Series strips do have aluminum PCBs. I can't say yea or nay for sure as I don't currently own any of those strips.
Yesyes3000
Well-Known Member
I’m trying to find some Samsung strips on arrow and having some trouble finding the correct ones. Could someone steer me I. The right direction. I’ve found some that are like less than a dollar or a little above but not sure if they are good.
haze010
Well-Known Member
I had 26$ in duties on $100, tax here is usually 15% so it was abit more than tax for me.
they are linked in the first post...
getogrow
Well-Known Member
Thanks for the reply. nope i didnt know that. i suspected it while thinking though. 22.5v is what the data says , so im only guessing my wiring is keeping the same current but doubling the voltage ? im just a residential electrician. not much knowledge on low voltage or DC.I should have looked at this before I responded. ^ That is exactly what I started with, including the 480 driver, but I used a 48V driver because I had 2 strips wired in series, then 6 x 2 in parallel.
Incidentally, the way you have those wired also requires a 48V driver. I suspect you already knew that
getogrow
Well-Known Member
you answered me up there. maximum current of each diode.
you could run 345 watts per frame but efficiency goes out the door and would probably need active cooling of some sort.....that was my question. what could you run to them max without hurting the diodes. Sounds like "max" is high as you want with cooling being right. (kinda like over clocking a cpu)
Prawn Connery
Well-Known Member
Hey mate, I've made five strip builds so far and the 560mm F-Series strips are aluminium and the 560mm H-Series are FR-4. Here's an F-Series frame I made – definitely ally.
Prawn Connery
Well-Known Member
You have 12 strips wired in parallel (+24V) which are then wired in series with another 12 strips in parallel (+24V) for 48V (max).
The datasheet gives a nominal voltage drop of 22.5V at 50C with 480mA of current. If the strips run cooler, then the Vf requirements could be as high as 24.2V at 480mA. If the strips run warmer, then the Vf requirements could drop as low as 20.8V. Always use the higher figure when calculating voltage needs for your driver.
That's right.
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Yesyes3000
Well-Known Member
So I just ordered 30 of these
Are these the right strips for the build ? and I could t find what diode the use? I could use some help please
Are these the right strips for the build ? and I could t find what diode the use? I could use some help please
$2 samsung F series Double Row strips !!!!!!!!!!!!!
Get them while you can!
https://www.arrow.com/en/products/si-b8t521560ww/samsung-electronics
Get them while you can!
https://www.arrow.com/en/products/si-b8t521560ww/samsung-electronics
Always feel like I pick up a little more understanding of it all from your posts.
Excited to see the new lights from you guys though. Going to save all my extra pennies for when it's released.
Prawn Connery
Well-Known Member
I made a mistake last night when I was high, but corrected it today. Voltage requirements go down as the LED heats up – not up
Warpedpassage
Well-Known Member
4k, 2 ft double row. Great deal.
Have you guys seen any other spectrum such as 3k on offer with these killer sales before, f series in particular?
Why is the tariff cost so high when purchasing via arrow?
60$ on 68$ order is insane. Usually i have payed about 10% at digikey and elsewhere.
Edit: ok, i see it now. They double the price of the sale price under the guise of tariff. They dont charge tariff on other strips or products I looked at. Overall still a good price.
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i didn‘t pay any tariffs. but i also didn’t vote a lunatic to be president.
Same here we do have an idiot Prime Minister but he has stopped short of tariffs on China, Wouldn't be a great start when we are leaving huge free trade deal with the EU and actively seeking new free trade deals.....following President thump wouldn't be in UK interests at this point.
The Loafter
Well-Known Member
Was about 32cad for the taxes and such on 180 4k strips. to around toronto (canada).
at most im up to CaD $205 for 1800+w nominal w/o driver. idk what to do with them, but ill figure it out. those $2 f series spund better tb i got these suckers.
also scored a 600w 36 v driver for 128 ish cad. 95.5 efficient. need different boards/cobs strips for that and drivers for this lot of strips. saving money costs a good bit.
at most im up to CaD $205 for 1800+w nominal w/o driver. idk what to do with them, but ill figure it out. those $2 f series spund better tb i got these suckers.
also scored a 600w 36 v driver for 128 ish cad. 95.5 efficient. need different boards/cobs strips for that and drivers for this lot of strips. saving money costs a good bit.
BuddyColas
Well-Known Member
Killer deal on the 4Ks. So how do you find out about deals like this on Arrow?