PV Junction Box

I couldn't find a suitable design for my requirements on the web so I designed a simple PV junction box. 2 holes on the side are 6mms in diameter. The lid is a tight fit and doesn't require any gluing. 2 holes on the bottom are for metal bars coming from the solar cells. I've soldered 4mm^2 cables to them and used screw connectors to connect them to "outer" solar wires. The junction box is glued to the flexible solar panel surface via construction-grade glue. I put 9kgs of mass on the box while the glue was drying.

Dimensions for the closed box:

Height: 30mm
Width: 60mm
Length: 100mm