Thank you all for the info,
The piranha's I acquired were found in the bottom of a friends "bit's box"
I searched the oracle, (g----e) but could not find any info.
following the file sent, I noted the forward volts was very similar to the led's I have been using, so wired them the same.
Yes I did have a problem with the specs, (no indication of anode and cathode.)
call me lucky but it worked. (nice bright, clear, even light)
I need a light in the wavelength of 470 to 630 nm, as bright as possible, yes this is a prototype, need summat more reliable.
not sure if this is allowed, (advertising) but as I am soon to be in the market for some more piranha LEDs,
can anyone suggest a make I can trust, (I believe red and blue will give me wavelength I require)
thanks again for all your help
Baz
What could possibly go wrong ?