After reading many posts of self builters I thought: "well, why not take a chance!" and ordered a SSR-90 at AMU-electronics in Germany. The package came in within a week after ordering
When measuring it with my Fluke79, I didn't got a reading (resistance infinately) nor saw the LED glowing up, a bit strange because the at the same time arrived XM-L leds did glow up a bit when measured by the Fluke79.
Since I red that the SST-90 needs about one amp to start up, I ignored this fact and started soldering wires at the star board.
One of the four connections I didn't like so I desoldered two of them and went on with screwing the star on a CPU couler with a therman capacity of at leat 50 Watts.
Since the powerbuck driver (ordered previous week at cpf) should have landed at my front door, I used a 700 mA driver in order to start really slowly on this baby.
Nothing happened so I tried the 3A conlux driver, ordered at dotlight.de
Guess what: nothing happened too...
Now I started trembling and decided to measure the LED.
My nightmare came true: 0,6 ohm, the resistance of the wires of my Fluke 79!!
I desoldered all the wires, hoping taht I might have soldered a shortcut but nothing helped at all.
Tis morning I had some more daylight and made a macro-picture.
This doesn't look nice at all.
The poor LED did not lit up a micro second and I took as many precousions to solder the SST-90 as quick as possible, using a weller soldering station and cooling it down right after soldering it.
Has anybody ever seen a tiny black dot in one of the lines within the yellow led-field when looking at a defective SST-90?
Could anybody take a multimeter and measure the resistance for me (my fluke79 has a special diode measuring level) to look if it glows up a bit??
Could this be a faulty LED or did I kill it while soldering it??
I soldered the XM-L at exactly the same way and this baby really lights u a hole room at 8 meters distance using it's own 100 or 120 degrees lense!
Any suggestions would be really appreciated!!