/diy/ - Do It Yourself

Anyone have experience with this shit?
About a year before I started in my current job, the previous engineer decided to replace all the lights in the factory with "high efficiency fluorescent tubes".
They bought about 50 extra tubes.
Fast forward to now, all spares are gone and lots of bulbs are blown.
Turns out they're a plastic tube with a shorter than normal fluorescent tube inside and built in ballast (pic related). So turns out they pulled all the existing ballasts out of the fittings so I can't use normal fluorescent tubes. I could go to LED tubes but would have to rewire all the fittings so live and neutral were on the same end.
The Chink company they bought the tubes off have dropped off the face of the planet and any lighting suppliers I've asked have never seen anything like these tubes.
The ballasts are still good but I can't fit a standard tube into the fitting with the ballasts on it.
Anyone ever see these things before or have any idea where they can be bought?