How come we don't have SSC Q5s?

[Fallingwater]

SSC LEDs use the same die as Crees, so why haven't they started using Q5 dies in their emitters? Even the P7 is still stuck at Cree P4 efficiency.

 

[phantom23]

SSC LEDs use the same die as Crees, so why haven't they started using Q5 dies in their emitters? Even the P7 is still stuck at Cree P4 efficiency.

What??? :huh2:

SSC P4 has average 110-115lm@350mA now. It's between Cree Q5 and R2.
It's the same situation with P7, note that leds are less efficient at higher currents.

 

[Lightingguy321]

Your mixing up the White LED output bin with the substrate die type in the SSC. The SSC uses the Cree EZ1000 substrate die to get the white light after a phosphor coating is applied.

 

[Fallingwater]

Oh. I just assumed the P4 in "SSC P4" to have the same meaning as in "Cree P4", so a SSC with a Q5 die would be called "SSC Q5".

In retrospect I should have noticed a fatal flaw in this reasoning with the SSC P7.

How does one distinguish inbetween different SSC P4 types when buying one, then?

Apologies for the silly questions, but I've never paid much attention to SSCs so I don't really know much about them.

 

[ICUDoc]

SSCs are binned (see their website), but the common bins are T-bin and U-bin for output. The ever-reliable Fred / PhotonFanatic has a new U2 bin available- just that little bit better!!! See B/S/T.

 

[Fallingwater]

So U2 is brighter than U which is brighter than T?

If that's the case, how come the T-bin SSCs are more expensive than the better U-bins?

 

[LukeA]

So U2 is brighter than U which is brighter than T?

If that's the case, how come the T-bin SSCs are more expensive than the better U-bins?

Volume.

 

[easilyled]

So U2 is brighter than U which is brighter than T?

If that's the case, how come the T-bin SSCs are more expensive than the better U-bins?

Antiques are quite expensive

 

[Lightingguy321]

SSC used the Px naming scheme for all of their LEDs. Notice that there are such things as SSC P1 thru SSCP3 LEDs. The SSC P4 is simply the latest technology they employed for a high output 1-3 watt LED. The P7 is their 5 watt and the P9 is their LED that can run at 120/220volts. The binning is done by letter for flux. T bin is a little dimmer than U bin. The U bin was recently split in to 2 bins (U1 and U2) and eventually, the V bin LEDs will be available. P7 and P9 LEDs follow a different scheme for lumen output ratings

 

[Brightboy1]

...and the P9 is their LED that can run at 120/220volts.

I have a MJ (ARC Mania) Extreme Micro with a 0.5 watt P9 Seoul LED (Bin number: RSW0I, R = 41.5 to 54.0 lumens in brightness). I don't think MJ upped the current to 120 Volts, but I could be wrong. One heck of a boost circuit :naughty:.

 

[Fallingwater]

Would a SSC U-bin (this one) do as a straight unsolder-solder replacement for a Cree Q5?
I know Q5s have a higher Vf than P4s, but I'm not sure about the SSC. Putting a meter across the Q5's terminals gives a voltage of 3.67 running at full power, if it helps.

 

[adnj]

I believe that the die package, and therefore the solder leads, is different between the Cree and the SSC.

 

[Marduke]

The footprint between the SSC P4 is much different than the Cree XR-E. The SSC is usually a much better replacement than for a Lux III.

A detailed list of the bin codes is here:
http://www.candlepowerforums.com/vb/showthread.php?t=156772

 

[LEDninja]

SSC have just revamped their brightness bin codes:

 

[znomit]

SSC have just revamped their brightness bin codes:

Meaning as soon as they hit 118.6 and put out V bins people will be talking up their 154lm lights.

 

[phantom23]

Probably they'll split V bin to V1 and V2. I hope they will...

 

[Furrballz]

Are the SSC P7: D and E bins available?:thinking:

 

[phantom23]

No. Remember that 700-800lm C bin is also unavailable. Based on previous binning&labelling current C bin is 740-900 (960) lm. They changed datasheet only, not emitters.

 

[Furrballz]

Phantom23: Thank you for your reply. I'm a bit confused here - the C-bins are not available? How about those "SSC P7 C-bins" sold on DX and KD? Correct me if I'm wrong, is the C-bin 700-800lms is better in comparison with the previous C-bin 740-900lms? Why is this so? Thank you.

 

[phantom23]

All C bins you can buy now have 740-900 (960)lm. Similar situation was with U bin. They split it to U1 and U2 a month ago (not sure) but you can buy one for a few days from PhotonFanatic only. With P7 they basically split previous C bin to C and D. C is available. C and D no (not yet).