How to fix new circular fluorescent tube not working?

[Ton]

I purchased a Nelson 22W 185mm T5 Natural White Tri-Phosphor Circular Fluorescent Tube to replace the old one, but it didn’t light up at all. The previous tube also didn’t light up, so I assumed the issue was with the old bulb. Now I’m unsure. What could be the possible issue, and what’s the best way to fix it? I've attached photos for reference.

[EricL]

Hello @Ton 

Thanks for sharing your question about your fluorescent light. If this is your second bulb, there might be something else that could be causing it not to work properly. I propose engaging the services of an electrician as they can diagnose your light assembly and possibly repair it.

Let me call on our experienced member @MikeTNZ for his recommendations.

If you have any other questions we can help with, please let us know.

Eric