The peltier module you can buy in Poland from

Transfer Multisort Elektronik

There part number is PM-15x15-9.5

http://www.tme.eu/en/details/pm-15x15-9.5/peltier-modules/stonecold/#

It's only 6.5watts so it will be very sensitive to 0.3watts from a typical laser pointer you will get quite a voltage from it.

Try it first but you can also paint it black with matt black paint so it absorbs maximum energy smile

You don't have to keep showing me the same image I promise you I understand what you think it isn't that hard to understand.

Last edited by Orac; 11/13/13 02:26 PM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.