osram oslon sll or lumileds luxion which is better?

which is better osram oslon sll or lumileds luxion c & sun plus . i have noticed that osram oslon sll leds seem to be lots cheaper now . looking at the data sheet they seem to have slightly different ways to measure there data ie mw / lm / ppf which is making it difficult to make a direct comparison . obviously they both are good leds . are there any good resources on the internet that would make this easier??

you can calculate the efficiency of any led by the formula

(mW output) / (voltage x current)

Nominal/test durrent is usually stated
corresponding voltage at that current can be looke dup on same datasheet

the reason they use mW of output is lumens are meaningless for monos

justsmokedope said:

which is better osram oslon sll or lumileds luxion c & sun plus .

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By far the OSRAM Olson SSL have a higher efficacy.
I like the Luxeon C Line, but they are too small. Can only be assembled by an expensive pick and place robot. And rework (replacing) would be a bitch.

What I like about both of them is their wide view angle. Wider has better uniformity.

CobKits said:

the reason they use mW of output is lumens are meaningless for monos

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The reason they use radiometric watts is deep blue and deep red fall outside the on the edge of human visibility (lumens)
All other mono colors are typically still specified in lumens.

Actually lumens works well for monos. Monos are easy to convert from lumens to watts and vise versa.
It's just a simple conversion factor when it's a narrow bandwidth.

Conversion from Lux to W/m² is the same for Lumens to watts.

thanks guys will look into this tonight it was cus im needing to buy loads of leds for a project the luxion are like £1`.80 each and the olsons are £0.85 each which is a massive difference

GrowLightResearch said:

By far the OSRAM Olson SSL have a higher efficacy.
I like the Luxeon C Line, but they are too small. Can only be assembled by an expensive pick and place robot. And rework (replacing) would be a bitch.

What I like about both of them is their wide view angle. Wider has better uniformity.



The reason they use radiometric watts is deep blue and deep red fall outside the on the edge of human visibility (lumens)
All other mono colors are typically still specified in lumens.

Actually lumens works well for monos. Monos are easy to convert from lumens to watts and vise versa.
It's just a simple conversion factor when it's a narrow bandwidth.

Conversion from Lux to W/m² is the same for Lumens to watts.

View attachment 4093631

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im actuly going to have to use a pnp machine for my project as i dont much fancy placing 408 lm561c leds by hand as well as the other leds haha
Although i can build one for about £700 ie lightplacer type pnp

GrowLightResearch said:

OSRAM Olson SSL

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What's with the Olson twins fetish? Those leds are called OSLON

The reason they use radiometric watts is deep blue and deep red fall outside the on the edge of human visibility (lumens)

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No it does not fall outside the edge of human visibility. The Lumen CIE curve goes all the way from 380 to 780nm.

Actually lumens works well for monos. Monos are easy to convert from lumens to watts and vise versa.
It's just a simple conversion factor when it's a narrow bandwidth.

Click to expand...

Mono's do not emit only a single wavelength. It's the exact same thing to convert mono SPD's between lumen and umol/s as it is with any other SPD.

An actual mono 660 SPD multiplication factor from lumen to PPF is 0,076 and not 0.132. Or the division factor for lumen to PPF is 13,19 and not 7.55.

justsmokedope said:

Although i can build one for about £700 ie lightplacer type pnp

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I had not heard of LitePlacer. I was looking at openPnP.

http://openpnp.org/

I had two Zevatech Placemat 760s.

This photo was taken just before I drove the moving van away. This is just some of the stuff I left behind. That's a conversion oven in front of one of the Zevatech 760s.
There was a bedroom I used as a manufacturing work area. Left an entire manufacturing line behind.

GrowLightResearch said:

I had not heard of LitePlacer. I was looking at openPnP.

http://openpnp.org/

I had two Zevatech Placemat 760s.

This photo was taken just before I drove the moving van away. This is just some of the stuff I left behind. That's a conversion oven in front of one of the Zevatech 760s.
There was a bedroom I used as a manufacturing work area. Left an entire manufacturing line behind.
View attachment 4093692

Click to expand...

sounds expensive

justsmokedope said:

sounds expensive

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What? Zevatech or openPnP?

GrowLightResearch said:

What? Zevatech or openPnP?

Click to expand...

the stuff you left

GrowLightResearch said:

Actually lumens works well for monos. Monos are easy to convert from lumens to watts and vise versa.
It's just a simple conversion factor when it's a narrow bandwidth.

Click to expand...

of course it is

its also a non-consumer friendly extra math problem involving constants not necessarily in front of you at the time