Are there any usb or shaver socket powered demister pads?

ashe

We put in a nice bathroom mirror cabinet with infrared sensor to turn on and a shaving socket inside it. We thought it had a demisting pad but we just have had it confused with another model and it's installed now. 

I presumed there would be a fairly easy to find usb or shaving socket powered demisting pad which we could just fix to the internal mirror door but it seems they're all wired in, and we don't really have space on the wiring part as it is behind the mirror and the mirror is fairly flush to the wall. 

Anyone aware of a solution to this beyond wiping the mirror? 

grumbler

demister - edit the title

And shaver sockets have very limited power - just about 20W IIRC.

I'm not sure I understand the question, but if the pad is less than 20W I think you can wire it to a plug and use with a shaver adaptor.

ThisIsWeird

If it's USB powered, then the device will almost certainly be limited to 1 or two amps, so 5 or 10 watts. And you can, surprisingly, find heating pads that run off USBs.

The only ones I'm aware of without looking further are blankets which have a small heated area for your hands - these could presumably be cut out and removed!

Edit: If these really get anywhere close to the 50 or 60+ degrees they claim, then you'll have a cosy mirror! https://www.ebay.co.uk/itm/403987076924? (That's just the first example I came across.)