Creality Ender3 Top Light Mount

I needed a light for my Creality Ender 3 printer so I can capture better videos with my camera. This design can be used to other printers that have an aluminum profile extruded bar at the upper side.
I used 2 pieces of this LED Rigid Strip Tube Bar Light Lamp With U Aluminium Shell and PC Cover (https://www.banggood.com/50CM-SMD-5730-36-LED-Rigid-Strip-Tube-Bar-Light-Lamp-With-U-Aluminium-Shell-PC-Cover-DC12V-p-1088115.html?rmmds=myorder&ID=233520867&cur_warehouse=CN) which I cut it in a suitable length.
In order to mount it on the aluminium profile I used M5 T Sliding Nut Zinc Plated Carbon Steel for 2020 Aluminum Profile (https://www.banggood.com/50pcs-M5-T-Sliding-Nut-Zin-Plated-Carbon-Steel-T-Sliding-Nut-for-2020-Aluminum-Profile-p-1048439.html?rmmds=myorder&cur_warehouse=CN) and M5 screw.
Also, I used a rocker Switch (https://www.banggood.com/5pcs-Black-Push-Button-Mini-Switch-6A-10A-110V-250V-KCD1-101-2Pin-Snap-in-OnOff-Rocker-Switch-p-1096122.html?rmmds=myorder&cur_wareho