I don't own any SST-90 lights... I've had for about 5 years this same C8 Host with a Q and R2 and now with an R5 led and the spot is hot and focused, 150 yards throw without any problems !!!! How would this SST-90 do ? Any comments, price, or suggestions ?
It looks good but it seems like the reflector is a bit to small to take full advantage of the sst-90.
From what I hear, such a light would be profoundly underdriven on only 4.2 volts. You'd get only as much light as an XM-L or less (so I've heard). If you'd be so good as to be the test rat and buy it, we'd be grateful! If you like it, I'll buy one!
:-D
Cheaper one here...
Just looked at the description and considering it runs off 1 18650 at 600 ma then this thing is not even going to be as bright as an xp-e.
This is from 15 feet beam shot…
This one has that reflector for flood.... I like the shinny for throw .....
The current draw is too low for a SST-90. Beside that for the C8 design I don't think the heatsink mass is enough to handle a 6-7A driven SST-90, not to say fully driven at 9A.
Unless you've got a Chevrolet Engine Block to use as a heat-sink, the SST-90 is pretty worthless. As other's have said, an under-driven SST-90 doesn't even compare to an XM-L in brightness, and a well driven one needs 800 pounds of thermal mass and 800 sq. inches of surface area to dissipate the heat.. Lose-lose situation for a flashlight.
PPtk
Wow. So, where are SST90s used then? In flashlights, you can only do rather short burts then..
Exactly. :P
SST-90 is best in a multi-cell light with lots of metal around it for heat sink. a single 18650 can't possibly drive it to 9 Amps without damaging you or the battery and if it could the heat produced in a c8 body would be enough to cook on. Even in 2x18650 designs the current draw is above the limit of most inexpensive 18650s and the heat produced is still such that short bursts are all it is good for. I have a couple 2 cell SST-50 lights and those produce all the light and heat one can reasonably expect out of a package that size.
SST-90s maybe best left for street lights at this point.
I would like one of those C8 to use without driver, direct driven with an LMR cell (Like AW or similar). I don't know if the switch can handle it, but for short bursts like 100 seconds it would be an awesome light.
My question is... is it safe for the LED to direct drive with a LMR battery? apart from the poor heatsink, what would be the current with full charge?
Maybe the switch can help adding some resistance and the LED won't burn, but I don't know...
And it would be cheaper to buy a C8, you can buy a spare SST-90 and a C8, for USD43, and an extra XR-E emitter and driver, all for less money.
Edit: This one from DX is cheaper and has a SS-bezel... all for USD39, not bad.
But I think that a better host for 1x18650 would be the HD2010 with this SST-90
if you wait a few months the olight sr90s will come down considerably in price now that the sr95 is out... i got my sr90 on ebay recently for about $300, my guess is you could probably get a used one for 175 in a few months
It still hard finding one under $300.00 why is that ?
No. It doesnt have the drive current to justify using the SST90, and even if it did it would overheat in a host that small + light weight.
The SST needs a lot of power to justify even using it. Its an underperforming emitter when under-driven. You would get more lumens driving an XPG or XML at that current.
x2 on that.
Well let’s get this project going !!! Who can we contact ?
Ya know, all this talk on the shortcomings of the SST series and I STILL want one of each just to say I have them!
SST-90 shot from 205 yards according to Google…… Elektrolumens ST-90
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