I bought a used Pixel 5 in Feb for my daily driver. Replaced my Pixel 3 only because the power button was flaky. They both still run great. By my standards, getting two years out of a phone I paid $150 for is better than getting three years out of a $700 phone.
If you mean running the fans in 240vAC, Comair Rotron make fantastic fans for this voltage. If you mean a regulator circuit and any old 12vDC fan, sorry for misunderstanding.