fyrstormer
Banned
I've found sources for various types of LEDs, but I've never managed to find any Hi-CRI P4s. Anyone have a couple they'd like to sell me?
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Sold/Expired WTB: 2x SSC P4 Hi-CRI emitters.
- Thread starter fyrstormer
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Tekno_Cowboy
Flashlight Enthusiast
I've got a group buy going on if you don't need them right away. Link is in my sigline.
fyrstormer
Banned
Okay...I see you've got two bins, T1STx and T2SS. What's the difference between them?
Tekno_Cowboy
Flashlight Enthusiast
T1STx is higher color temp, T2SSx is about 10 lumens brighter. Either one is very nice.
fyrstormer
Banned
Both rated at 93% CRI? Are we talking a 10 lumen difference at 50 lumens nominal, or a 10 lumen difference at 200 lumens nominal?
Tekno_Cowboy
Flashlight Enthusiast
Yep, both are 93 CRI 
IIRC it's at 350mA, and 10 is the average. min difference is none, max is 20 lumens.
IIRC it's at 350mA, and 10 is the average. min difference is none, max is 20 lumens.
fyrstormer
Banned
Now that you mention 350mA...what's the max current on these? Is it any different than "normal" P4s? As far as I know it isn't, but I suppose I should ask.
Tekno_Cowboy
Flashlight Enthusiast
IIRC the spec sheet says 800mA, but I've run them at 1A with no issues in 16 months time.
I will say that there isn't much extra gain in output past about 850mA with SSC emitters though. If you want to see a worthwhile gain from an SSC past 850mA, you have to jump straight to about 1.2A. For most of my uses, this is just way too big a hit to the efficiency.
For more info, take a look at the datasheet in the OP.
I will say that there isn't much extra gain in output past about 850mA with SSC emitters though. If you want to see a worthwhile gain from an SSC past 850mA, you have to jump straight to about 1.2A. For most of my uses, this is just way too big a hit to the efficiency.
For more info, take a look at the datasheet in the OP.
fyrstormer
Banned
I did, but it wasn't clear whether there were special considerations regarding the Hi-CRI emitters. Anyway, that confirms what I thought I already knew. I posted my interest in your group buy thread.
If anyone happens to have one of these on-hand, though, I'm still interested in buying one right now, so I can get the ball rolling on the project I'm going to use them for.
If anyone happens to have one of these on-hand, though, I'm still interested in buying one right now, so I can get the ball rolling on the project I'm going to use them for.
Tekno_Cowboy
Flashlight Enthusiast
I can probably help you out there. I'm sure I can find one to hold you over. Just shoot me a PM and we'll work out the details.
