Hum thank’s for every answer.
But I want to understand something.
I have my Jax Z1 with sbt 70 and a FET driver.And with a NCR18650B and I got 8.90 amps.
But I know the vf of the sbt70 is 3.3v. The 219c as 3.8volts? If I’m right the fet driver can deliver the maximum amps the diode need?
But I don’t planned to lower the resistance of all springs to limite the current.
4.5 amps with the ncr18650b is possible? Or you got the max amps with a 30q?
If I don’t get blue tint shift I’m okay.
Edit: I don’t want to get the maximum amps in the led. This light will be my EDC light. I’m waiting every parts of the light.
Sorry to say, I am not qualified to help out with your mods. Hopefully, someone will be able to add to what you have posted.
I am concerned, however, that pulling 8.90 amps from a Sanyo/Panasonic NCR18650B exceeds the maximum continuous discharge current specified by the manufacturer for that battery. I have one (evidently older) document from Sanyo that specifies 4.875 amps as the maximum. On web sites like Orbtronic's, I frequently see 6.8 amps (2C).
your link goes to a Nichia 219A triple, this comes nowhere near the output of the Nichia 219C . But the XP-L Hi will still have a higher output as a Nichia 219C, but the triple beam will be a little less nice.
The Nichia site used to mark all 90CRI 219C’s ‘under developement’.
I already heard rumours (from clemence), but now also on the website for the 3500/4000K version that marking has gone, so I guess they officially started producing them.
Currently published data limited to R7000. Actual product are available up to R8000. Will take months or years until the R9050/80 launched.
Also, theres 7070 package ready to launch with weird but practical footprint: 149AM (9V)
Available up to R9050. Designed for stadium lighting.
And 8080 package too
And there’s rumour that 149AM R9080 is already there made exclusively for Panasonic
Football is very popular in Japan……And I guess that’s why there’s a special request for it.
Here is my quick analysis of the 219D based on the info on the website and your graphs 1C3 compared against 219B and 219C datasheet values for R70 LEDs:
Lumen output (700mA):
219D: 336
219C: 322
219B: 302
~4% efficiency increase (vs 6% increase going from 219B to 219C)
A quick calculation using a ruler against your graphs 1C3 I get the follow voltage values @ 2.4A:
219D: 3.35V
219C: 3.45V
219B: 3.4V?
~3% efficiency increase
~7% total efficiency increase
Luminous Intensity:
219D: 115
219C: 92
219B: 76
25% increase (vs 21% from B to C)
This isn’t as large a change as we saw going from the 219B to the 219C but given the compounding effects of better efficiency / less heat being created as efficiency inches closer to 100% and a narrower beam this looks like it could be a nice upgrade to the 219C, especially in lights where more range is needed.