High power leds

[Badpip]

I have a couple of scanners like this one (same scanners, but another oem brand):
http://www.chauvetlighting.com/intim...-scan-led.html

I would like to replace the puny 20w led with something with a little more power.

The original led is one of these:
20w led.jpg

I have been looking around on fleabay, without much luck. There is plenty of 50W leds, but I am afraid the emitting area is too large on those to work with the original optics.

Does anyone know of a white led (2500+ lm) with an emitting area around 10x10mm?

/Thomas

[VJ AIWAZ]

this is a little bigger but it looks like it packs a punch

http://www.better-led.com/en/product...D-200W-02.html

[Villalaser]

Did a quick search at mouser and found, 2,750 lumens & 9mm emitter?
http://www.luminus.com/products/data..._Datasheet.pdf

or have a look at the others
http://www.mouser.com/Search/Refine....026+4292825950

[Badpip]

this is a little bigger but it looks like it packs a punch

http://www.better-led.com/en/product...D-200W-02.html

Wow... Yes that should pack quite a punch... A little overkill though

/Thomas

[Badpip]

Did a quick search at mouser and found, 2,750 lumens & 9mm emitter?
http://www.luminus.com/products/data..._Datasheet.pdf

or have a look at the others
http://www.mouser.com/Search/Refine....026+4292825950

Nice little things - but pretty pricey...

Did a search on Mouser and found these:
http://www.mouser.com/ProductDetail/...2fTpvMiQ%3d%3d

Those might just be the thing for this

/Thomas

[BShanahan14rulz]

Wowee! Individually addressable dice too!

SST-50 and SST-90 are available from China sites, in the lower, cheaper bins. Also at Mouser. Still a bit pricy, though, and it is domed, unlike the original LED.
http://www.mouser.com/ProductDetail/...QxrCqtxBhDO5hx
Datasheet: http://www.luminus.com/products/data..._Datasheet.pdf

The flat-windowed version is twice as expensive CBT-90, linked above.

Either way, let us know how it goes ^_^

[Badpip]

...and it is domed, unlike the original LED.

Didn't think about the dome... That may cause problems... Guess it's time to experiment...

Either way, let us know how it goes ^_^

I'll order a couple of cheap 3-5W LEDs with and without a dome to play with when I get the time... Will post results when I'm done

/Thomas

[hivelaser]

I would be interested in this as well... I have some moving heads with lower power LEDs and would like to replace them with something more powerful. Please keep us updated.

[Badpip]

I would be interested in this as well... I have some moving heads with lower power LEDs and would like to replace them with something more powerful. Please keep us updated.

Will do - LEDs are on the way from china - may take a couple of weeks before they arrive though.

What kind of heads do you have?

/Thomas

[hivelaser]

i have 4 of these...American DJ X-Move also with only 20W LED if i could pump that up to 50 or 60W would be awesome...

[Badpip]

i have 4 of these...American DJ X-Move also with only 20W LED if i could pump that up to 50 or 60W would be awesome...

Most likely same LED then...

Some pics of the optics section from the scanners:

scanner optics 1.jpgscanner optics 2.jpgIMG_20110616_004753.jpg

Sorry for the image quality - cellphone camera

Maybe one of the optics-experts can give a hint?

/Thomas

[Badpip]

Time for an update

I ordered one of these kits:

Link

...And after a couple of hours of drilling and swearing (and cable-tie abuse), I have this:

IMG_20110708_013736.jpgIMG_20110708_013757.jpgIMG_20110708_013814.jpgIMG_20110708_013820.jpg

This thing is BRIGHT
Some of the light is wasted in the optics, but the output of the scanner is a lot better now

Had to put a fan directly on the LED-heatsink - this thing puts out LOTS of heat.

/Thomas

[hivelaser]

do you have some running before and after pictures?

[Badpip]

do you have some running before and after pictures?

Damn - forgot to take before pictures

But I will rate is as twice as bright as before.

Color temperature is the same.

Totally worth 45 USD

/Thomas

[hivelaser]

Show me some picture please, of the new LEDs running.

[Badpip]

Show me some picture please, of the new LEDs running.

Here you go - sorry for the bad picture quality.

Cellphone camera + moving gobos = hard to capture.

Pictures are taken in daylight.

IMG_20110708_044203.jpgIMG_20110708_044210.jpgIMG_20110708_044301.jpgIMG_20110708_044308.jpgIMG_20110708_044316.jpgIMG_20110708_045003.jpgIMG_20110708_045026.jpgIMG_20110708_045246.jpgIMG_20110708_045307.jpgIMG_20110708_045333.jpg

/Thomas

[telmnstr]

Nice! I've got some Martin Roboscan 1220's that use 1200 watt HMI lamps.

One of our new hackerspace members is big into LEDs, and just got a 9000 lumen LED module (100 watt.) I haven't seen the reflection of it running, but would love to be able to move the Martins over to something like that. Problem is that it's an array and I don't think it would really work well with the optical path of the fixture.

I'd even be happy if I could get the HMI 1200 or MSR 1200 or whatever electronic ballasts to shed weight off of the thing. Chinese make em but they want about $400 per electronic driver for the lamp. Grrr.

[Badpip]

Nice! I've got some Martin Roboscan 1220's that use 1200 watt HMI lamps.

One of our new hackerspace members is big into LEDs, and just got a 9000 lumen LED module (100 watt.) I haven't seen the reflection of it running, but would love to be able to move the Martins over to something like that. Problem is that it's an array and I don't think it would really work well with the optical path of the fixture.

I'd even be happy if I could get the HMI 1200 or MSR 1200 or whatever electronic ballasts to shed weight off of the thing. Chinese make em but they want about $400 per electronic driver for the lamp. Grrr.

Wouldn't that be a massive downgrade?

A 1200W HMI puts out 110000 lumens: Osram datasheet

/Thomas

[telmnstr]

Yow, maybe it would be? We looked at a spec sheet and thought it looked like it would be about equal. Maybe we somehow came up wrong. It was a month or so ago.

Maybe it was the thought that much of the light is wasted because it goes in all directions.

Yea, come to think of it most of the comparisons of the 100 watt LEDs are versus 150 watt lights:
http://www.youtube.com/watch?v=ymfHL1T7ZHU

[Xytrell]

Either that's a dirty fixture, a defective lamp, or not really 150W. 150W HPS lamps output 16000lm when new.

My guess is they went around town looking for the dimmest fixture, and the fixture/lamp is probably very old. Regardless, it's not really fair to compare a new LED fixture with a old HPS fixture.

[laserdj]

150W HPS lamps output 16000lm when new.

Hi,
You´re comparing apples to oranges here... (HPS orange light indeed LOL )
This kind of lamp is not used in any moving head/scanner fixture, they are intended to street lights, check their color temp, 2000K!
Martin MAC KRYPTON 250 = 250W HID Lamp = 5000 Lumems = 60W LED = CHAUVET QSPOT260
I got both these fixtures and can attest to their claims. (Martin outputs just a bit more light to be fair...)

Cheers,
Bruno

[Badpip]

A 600W+ LED would be needed to replace a 1200W HID...

Look at MAC 350 (It has 7x50W Luminus LEDs):
Link

8000 lm output sufficient to replace 575 watt HID fixtures

I bet they know what they are talking about

/Thomas

[Xytrell]

Martin MAC KRYPTON 250 = 250W HID Lamp = 5000 Lumems

That is very inefficient for an HID lamp unless it's a short-arc. If it's a short-arc, it would have a MUCH smaller emitting area compared to a 50W LED, so it should make up for the inefficiency with image sharpness.

This kind of lamp is not used in any moving head/scanner fixture, they are intended to street lights

Yes - I was commenting on the street light video.

[ShortyInCanada]

-"Martin MAC KRYPTON 250 = 250W HID Lamp = 5000 Lumems = 60W LED = CHAUVET QSPOT260
I got both these fixtures and can attest to their claims. (Martin outputs just a bit more light to be fair...)

The other concern with LED is the color temperature of the light. Using just the rated lumen output isn't good enough. That is why the one source seems "brighter" than the other. It is a matter of perception. (As you age you need the light to be "whiter" to be able to see things comparably to when you were younger.)
I work in a lighting store and I have been watching the developments in LEDs as they are starting to enter the consumer market here in North America and you need to carefully research ALL available specs to be able to compare products.
The color temp, (27K, 31K, 40K, 50K) the output angle, the rated range, (some ratings are only for the "sweet spot" of the beam at optimal distance) the nominal power level versus the tested level of power, etc. As there are so many new start-up companies all vying for the market there isn't a standardized method of listing performance characteristics. So many use their top results in only a few of the factors to try to market their products differently than the rest.

So be aware and look closely at all the information available.

BTW - I like the much lower power consumption levels of the new LED lights and the cooler temperature "no duty cycles" fixtures without fans that operate almost silently myself. You know that a simple automotive inverter can power a whole lightshow while camping for a "Stag" party with better lights than most clubs have ?

[laserdj]

Low power consumption is a great plus.
Color temp of the led in my fixtures is 6000K
Of course due to the nature of leds color reproduction is less than optimal... this is clearly noticeable when you use RED for example.
But I think that with the 40.000 hour duration of the leds, lighter weight, insanely fast strobe, looong duty-cycles, instant re-strike, etc... this is a good trade-off.
Check youtube for videos of chauvet's Q-SPOT and Q-BEAM... nice fixtures...