Solar Powered Lit Street Number for 4x4 Post

My parents were unable to find their house in suburbia, so they asked tongue-in-cheek if I could design up a light mailbox post. I was more than happy to oblige.

The files attached are for the battery holder+the solar panel holder. The Light enclosure itself is provided as a .iges so you can change to your own

The parts purchased on amazon are as follows (affiliate links):

https://www.amazon.com/gp/product/B012ZHGGXU/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&tag=lukeslabora04-20&linkI