I needed the chassis of a 12V UPS Module, so I designed it myself. I was satisfied with its function, so I came to share it with friends to download and use. I designed the indicator light to be on the front, but you have to Use white or translucent plastic to make the lights visible. Because I didn't drill any holes. But I have made vents to cool the module and battery. I'm not sure if my module has mounting holes. Matches with friends' If there is any mistake, I apologize.