I’mv disassembling tradfri drivers just to use the wireless PCB directly wired to the 12v auxiliary battery of my van and control led lights.

Till now, I have been buying 30w version as the power required was 21w ( much higher than 10w)

For my next project I’m requiring 14w, so I have two doubts in mind considering the big price difference between 10 and 30w drivers:

Are the PCBs of both versions diffent or just the PSU is the rating limitation ?

If they are, would the 10w version handle 14w any way as normally there is some margin?

Thanks!