Upgrading 10W laser

Hi New here and new to lasering,

I have a 10W Creality Falcon laser which works just fine but now I feel it’s time to look at a little more power. I’ve seen 20W heads advertised on some sites but not as a Creality option. Is it possible to upgrade to a 20W unit?

I have seen them sold with an external power supply is this required?

One last one is there a ad-on pack that can be added to the unit to control the air assist?

Thanks for your help.