pearlriver, it would be nice if you could edit your previous posts' images (#9, #15) and set their relative width to 100% max. Attach a {width:100%} string between the first exclamation mark and the image url:
I never was very good in dedoming a SST-40 so the chances would not be good, and I would not have a suitable host for the dedomed SST-70 anyway (you want 6V 6A and a big smooth reflector for a proper dedomed SST-70 build).
The tint is plain cool white, seems no different than the cool white SST-40 tint, but if you measure it, it is quite a bit above the BBL. Here’s the center of the hotspot from a S2+ reflector, with the led at 1A (CRI=67.3,R9=–40)
Sure. The numbers are convenient to have but also they suggest an accuracy that is not there. That is why I usually just post charts, it removes the false preciseness from the numbers.
Yeah, looks very similar. On such high color temps I don’t find some green so objectionable, even though +0.006 is quite a lot. As is, I probably wouldn’t find any practical uses for the emitter though.
Thanks djozz.
Seeing the numbers I’m not sure it will outthrow XHP35 HI E2. I’m seeing 160 djozz-cd/mm² with 20% dedoming losses while XHP35 got 172 koef3-cd/mm².
Now…koef3 got better cooling and your lm are known to be a little high (though his might be as well).
So…seems like the same ballpark to me when it comes to throw.
Efficiency is within error margin as well (comparing at the same luminosity).
So…it’s much like a bigger XHP35 with dome and CRI70-only.
GXB172 would be great for it. It’s sad how this driver is still not easily available.
Thanks to the existence of “XHP70 drivers” it is possible to get some stock drivers configured for up to 4.8 - 5A driving current in ∅22mm size. User Windforce did some testing over a Manta Ray XHP70 driver bought from AliExpress, see Testing boost drivers' thread.
Of course ;-) I found rock-bottom price seller for the Manta Ray XHP50/XHP70 drivers: