Xpg R4 vs R5: tint difference

[pulstar]

Hi guys, i wonder what are the main differences between these two bins, except a little higher efficiency of R5?

 

[Owen]

R4/R5 is the flux rating. It has nothing to do with the tint.

 

[PeaceOfMind]

Well, by definition, the only difference should be the efficiency....

Tint will vary from LED to LED of course.

 

[jasonck08]

Does anyone have a link to the Data sheets. I'm told the difference between R4 and R5 is very small only a few percent.

 

[csshih]

all the datasheets, info, etc, can be found on the cree website here: http://www.cree.com/products/xlamp_xpg.asp

 

[baterija]

Hi guys, i wonder what are the main differences between these two bins, except a little higher efficiency of R5?

At the risk of being pendantic, technically the bin doesn't guarantee higher efficiency by itself. It gives higher output at a given drive current. Since Cree doesn't bin for forward voltage, and it varies by quite a bit more than the difference in output bins, you can't say for sure that an R5 is more efficient than an R4.

An R5 does have higher flux than an R4.
It's likely, although not certainly, more efficient.