Found a large peltier with no plug end does anyone no how I can power this up ??
Can I use some type of wall outlet
Do you know what voltage it originally ran off of?
You could, but it would quickly end in smoke, flames, explosions, and a wonderful/horrible/agonizing/crispy death. J)
Peltiers require a low voltage, high current DC source to work. They are HORRIBLY inefficient and pretty much have no use with LEDs.
I think it was from a mini cooler I had from work, I wanted to see how hot it could get maybe I can use it to reflow my LEDs
i don’t think it will get that hot, but i am no expert
Me either that’s why I asked, never used one before
No way, the internal junctions are a low temp solder. max heat rating on most peliers is less than 100C.
BTW, if you are going to plug it into the wall, we want videos…
Ok that answers my question, I thought I’d ask I never owned one before so I did not no
Also, the way Peltiers work is you connect them up and one side gets hot and one side gets cool. Reverse the polarity and it runs the other way (some versions don’t like reverse polarity though).
That’s the way this is, has a switch that says hot the other says cold
They will also generate a voltage if you give em a temp differential (one side heated, other side cooled). So use it to build a perpetual flashlight - heat from the emitters recharges the batteries*.
*note: this will not actually work 
Lol, ill just use it to heat up my led before I get ready to reflow it, and to cool it down
+1 
This sounded like a really interesting idea… So, Without further ado:
PPtk
Cool, I’m really surprised that the internal solder junctions in the TEC did not fail. Or perhaps the internal solder junction melted but, being sandwiched between the ceramic faces, they had no where to go.
Nah, I cheated, it’s a high temperature TEC. Rated for continuous operation at 200C with excursions to 300. 
Scratch That! That was a ‘regular’ 80C Rated Module. And it survived, amazingly.
I thought I grabbed one of the High-Temp TETECH ones, but I’m thinking about it now, and that wasn’t a TETECH - it was a regular old MELCOR/LAIRD.
Wow. I really am surprised that it didn’t fall apart at that temperature.
Now that worked out pretty slick. I have no experience in reflow, but would you consider that one of the better ways, or just another way to do it?
Just another… Not even as good as some - but it’s very workable, and for those without a few million dollars worth of electronic assembly equipment surrounding them - it definitely does the job.
For small quantity ( a few parts ) reflow soldering - my favorite way is by using a hot-air rework station
PPtk
No, but it sounds like the perfect basis for another perpetual motion scam.
Killed all my peltiers back in my water cooling days. Took them from a refrigerated ice chest we had. Worked good cooling the hell out of my CPU though.