Looks like you've forgotten about me again . . .
What's happened to my red n' blu, Igor ?
Batch 1 or 2, originally !
Wait, you did get your bonus red, didn't you?
I haven't forgotten about you, Andy but i have to admit, i did forget about your module. :yabbem:
You sent me module only without the body, and i misplaced it among almost 50 empty ones...
I wish you would have contacted me on Skype sooner, if i knew it's still here, you'd have received it back a long time ago. I fixed it as soon as i found your box during cleaning and realized it must still be here.
But in a few days you'll also get a free Tiny AAA BluRay, to make up for my mistake. I believe you'll be very pleased, when you open the package.
Hi Igor. Tried to email you but it go bounced back.
Hey my GGW module you made me just LEDed at under 30 minutes total use. I
had it in a good sized heat sink with thermal paste, and I always ground
myself on the kitchen faucet before I use it. I use a 30 second on, and 1
minute off cycle. I don't get it. Any ideas?
You've had it for quite a while, are you sure it's been only 30 minutes?
I have no idea why it LED-ed, out of 79 good GGW diodes from my old stock, only two ever died, yours makes the third. And i picked a normal efficiency one for you, after the one you sent me turned out to be weak.
But it was linear-driver powered, and i remember how hot it got, when i was testing it in one of my heatsinks. It creates over three times as much heat as it would with a high efficiency DC/DC driver. Regardless of your heatsinking, the driver creates this heat right behind the diode and warms it up, more than it would warm up by itself - it could be related, but it's impossible to say for sure....
There is no way for me to tell why a certain diode dies, some are simply tougher than others, others are weaker. With GGWs, deaths at reasonable currents are rare, but apparently, they do happen sometimes.
I think it's nothing else but statistics. Out of almost a hundred diodes, i expect a small number to die. The fact that it was yours is an unfortunate accident.
ESD is not a factor in battery powered lasers, you can't shock an ungrounded (and insulated) diode. That's why all my testing equipment is battery powered....
Putting together your module was free work, i don't know what to do now...
In any case, i set up a new email for laser related stuff only, in order to keep laser questions and orders separate from my personal email....
The email is in the forum link, writing there will get you the fastest answer, and allow me to clean up my personal email in peace.
.
now that is bitchin' :wave:
