Mini Inverter 12v to 220v B22 Light Housing

I have created a simple container to house a mini inverter purchased from ali express and a bayonet b22 light fitting. I plan to use them for camping and portable lights. I have printed and tested with 3d fillies PLA. There is 2 different backs, one is just a simple cover the other allows you to screw it onto something.

Please be very careful with these things there is no safety.

You will need:
Inverter link - $1.50 AUD delivered!
https://www.aliexpress.com/item/33038286159.html?spm=a2g0