6000 lm single LED ??? Is it true

[Axkiker]

Hey I was looking aroudn on ebay for an extremly brite led to use in my underwater project and ran across this

http://cgi.ebay.com/100W-warm-white...tem&pt=LH_DefaultDomain_0&hash=item4aa3076d23


6000 W single LED package....

Man LEDS sure have come a long way in the past year... Whats the lowdown on this package.. Any thing good or bad about it

if you were going to use it in an automotive package what type of driver would you use...

Anyone have an idea what kind of heat issues that you have with this package

 

[Larbo]

Unless your project is a submarine you should probably pass, check the specs in it. Its huge.

• DC Forward Voltage (VF): 33.0 ~ 36.0 Vdc
• DC Forward Current (IF): 3200mA ~ 3500mA
• Viewing Angle: 120 Degree
• Intensity Luminous (Iv): 6000LM
• Color Temperature: 3300~3500K
• Dimensions: 55X40X4mm

 

[Axkiker]

Unless your project is a submarine you should probably pass, check the specs in it. Its huge.

• DC Forward Voltage (VF): 33.0 ~ 36.0 Vdc
• DC Forward Current (IF): 3200mA ~ 3500mA
• Viewing Angle: 120 Degree
• Intensity Luminous (Iv): 6000LM
• Color Temperature: 3300~3500K
• Dimensions: 55X40X4mm

Actually the size doesnt matter to me... The way im currently doing things I would need to build 2 housings with multiple leds to get that kind of output. If the specs are true with this led I could use only one and be done...

Now im still not sold that its legit...

If it is legit what kind of driver could I use for an automotive /marine enviroment

 

[mvyrmnd]

I'm wondering is I could DD is from a 36V Printer power adapter... for .99 I'd be willing to blow one up!

EDIT: for $63 shipping, I'm no longer so willing. Bloody ebay sellers cheating the system!

 

[Axkiker]

I'm wondering is I could DD is from a 36V Printer power adapter... for .99 I'd be willing to blow one up!

EDIT: for $63 shipping, I'm no longer so willing. Bloody ebay sellers cheating the system!

HAHAHA yeah $63.00 is a little much just to blow up

If they are really 6000lm though its a pretty good deal to me.

My issue is what kind of driver to use for an 12v automotive deal

 

[AnAppleSnail]

I'm wondering is I could DD is from a 36V Printer power adapter... for .99 I'd be willing to blow one up!

EDIT: for $63 shipping, I'm no longer so willing. Bloody ebay sellers cheating the system!

Once you look closely at the picture and realize that he's shipping 100 LEDs (10x10 array) then the shipping is only $0.63 per LED. This is not a Light Emitting Diode, it's an array of them. Also, the "6000 lumens" is a strange claim. Why would a 1 watt LED emit a nice, suspiciously round 60 lumens? That's old technology, probably under lab conditions with some marketing spackled to the gaps. Buy three SST90s, get more output, and save money.

What optics do you think you'd use with this, anyway?

 

[Axkiker]

Once you look closely at the picture and realize that he's shipping 100 LEDs (10x10 array) then the shipping is only $0.63 per LED. This is not a Light Emitting Diode, it's an array of them. Also, the "6000 lumens" is a strange claim. Why would a 1 watt LED emit a nice, suspiciously round 60 lumens? That's old technology, probably under lab conditions with some marketing spackled to the gaps. Buy three SST90s, get more output, and save money.

What optics do you think you'd use with this, anyway?

Okay thats great info and the kind of feedback i need.

Im not really worried if the package has 10 leds or 100 leds. My main concern is in output / current draw and the ability to integrate it into a housing which I can make with ease... So when I saw 6000lm in a single package i was very interested.

Give me some info on the sst90's... im not familiar with them.

As far as optics im not sure. These are going to be in an underwater housing and are to illuminate the surrounding water. So a combination would be great...

Any ideas ???

 

[TORCH_BOY]

$63 shipping, They have lost me.

 

[deadrx7conv]

8000lm for 100w LEDs on ebay.

Also, there are 300w LEDs on ebay with 15000lm.

Its an array. Don't care what you call it. My P7 and MCE are arrays too. Single package LED whether 100 or 1 die is still a single LED package.

 

[Axkiker]

8000lm for 100w LEDs on ebay.

Also, there are 300w LEDs on ebay with 15000lm.

Its an array. Don't care what you call it. My P7 and MCE are arrays too. Single package LED whether 100 or 1 die is still a single LED package.

Yeah I saw that too after I posted this thread... Im not worried how many leds they have in a package as long as its a single package and really produces the advertised lumens...

Plus im lost as to what driver I would need to use...

 

[AnAppleSnail]

Yeah I saw that too after I posted this thread... Im not worried how many leds they have in a package as long as its a single package and really produces the advertised lumens...

Plus im lost as to what driver I would need to use...

Stated 33.0 ~ 36.0 Vdc. That's a narrow range! I know that Cree white LEDs have a Vf of about 3.2 (XP-G) to 3.7v (XR-E). So it looks like you're driving a series of 10 LEDs, driving 10 such strings. 100 watts at 33v = 3 amps split among those ten strings.

 

[Axkiker]

Stated 33.0 ~ 36.0 Vdc. That's a narrow range! I know that Cree white LEDs have a Vf of about 3.2 (XP-G) to 3.7v (XR-E). So it looks like you're driving a series of 10 LEDs, driving 10 such strings. 100 watts at 33v = 3 amps split among those ten strings.

have an idea what driver I would use????

Or where to look.... Back when I was working on this project there was a site that had nothing but drivers. I cant seem to remember what it was though

 

[NeSSuS-GTE]

May I recommend a reputable high-power array from Bridgelux instead?

http://www.newark.com/bridgelux/bxra-c4500-00000/high-brightness-led-arrays/dp/60R6542

Prices are equivalent. But Bridgelux has solid quality and reliability. And realistic output claims.

AND they're made in the USA. If that has any value to you. :thumbsup:

 

[alpg88]

Anyone have an idea what kind of heat issues that you have with this package

heat issues, but that can be taken care of with a good heat sink, how big??? i have no clue, but just from dealing with 1,3,5,10w leds, i'll tell you 100w led will need a really good heat sink, best place for that one to use would be underwater light where heat removed quickly, with heat sink\heat path build right.

another issue that is real concern is how long it will keep original brightness, and how long all dies will work, that is something chinese leds are famous for, crappy quality.

you'd be better off with 4 sst90. use search box here to find info on sst90, there are tons of it here.

 

[Axkiker]

May I recommend a reputable high-power array from Bridgelux instead?

http://www.newark.com/bridgelux/bxra-c4500-00000/high-brightness-led-arrays/dp/60R6542

Prices are equivalent. But Bridgelux has solid quality and reliability. And realistic output claims.

AND they're made in the USA. If that has any value to you. :thumbsup:

Ohh heck yea im down with that option.... Made in the USA is always a priority if possible...

So am I correct in saying that this is an led package which contains multiple led's... Im just currious how it all works.

Looks like I may have to experiment

 

[Axkiker]

May I recommend a reputable high-power array from Bridgelux instead?

http://www.newark.com/bridgelux/bxra-c4500-00000/high-brightness-led-arrays/dp/60R6542

Prices are equivalent. But Bridgelux has solid quality and reliability. And realistic output claims.

AND they're made in the USA. If that has any value to you. :thumbsup:

any idea where to get a dc to dc driver for this ????

Thanks

 

[alpg88]

this should work,
http://www.dimensionengineering.com/anyvolt3.htm


keep us posted, i too like this idea, i have lantern with 5" reflector, i would love to shoehorn this led into it, but now i have few other projects at hand, need to finish those first.
let us know how it works out.

 

[Axkiker]

this should work,
http://www.dimensionengineering.com/anyvolt3.htm


keep us posted, i too like this idea, i have lantern with 5" reflector, i would love to shoehorn this led into it, but now i have few other projects at hand, need to finish those first.
let us know how it works out.

Awsome!!!!

I wonder if there is a supply that would allow me to run 2 of these puppies????


Wasnt there a guy on here who was building power supplies.... For some reason I thought he had a website where he advertised everything he built....

That was over a year ago though

 

[alpg88]

Awsome!!!!

I wonder if there is a supply that would allow me to run 2 of these puppies????


Wasnt there a guy on here who was building power supplies.... For some reason I thought he had a website where he advertised everything he built....

That was over a year ago though

i,ve never seen anyone here build 24v supplies

google lm338

 

[deadrx7conv]

I just received a 50w LED array.

Since I'm going to be powering it off a 12v deep-cycle marine battery, I will be using an adjustable dc-dc voltage step-up power supply converter.
One of these maybe:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220591444240
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130400051008
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230501341448

With my DMM, I'll dial in the current that I want to use, knowing that it'll vary as my battery voltage varies from 11.5-13.2v. Light will dim as voltage drops. Set it to 50w at 13.2v, and hopefully still have 30+watts of output when the battery shut-off kicks in.

I probably won't be running the LED at 100%. I'll turn up the voltage to get the output that I'm looking for. Hopefully, this will keep the LED cool and make it last longer. Might have to upgrade to a 100w LED or even a 300w LED one day in the future.

Some 50w LEDs:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320409420593
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320553874305
100w LED:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=280537100596
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=400137712953
300w:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=360280497121

Miscellaneous:
http://www.satisled.com/Wholesale-20w300w-leds_c22?productsort=4&pagesize=48&sort=8d

AC LED drivers are also plentiful on ebay. Many of the LED arrays can be packaged with an AC driver from the seller.

I'm considering the larger 80-300w LEDs after reading this thread:
http://www.candlepowerforums.com/vb/showthread.php?t=89607
You don't have to run an LED at full power. I'm wondering how well the 36v 300w LED will work with direct-drive 12, 18, 24, or a 30v battery pack. Cut the output, improve lm/w efficiency, and lose the driver all together.