So that's about 8 months, right? Seems like an extremely short lifespan. Maybe that's how Intex SWCG are, I don't know. However since we don't see massive numbers of people here complaining about short lives of intex SWCG I'd start looking at your electricity. Do you have frequent brownouts/power surges? It MIGHT be worth checking out. Blackouts themselves shouldn't be a big deal but a brownout or a surge would.

If you still use any incandescent light bulbs, do you have to replace them often? Do you have an unusual (in your own opinion) number of electronic failures in your house? Those can also be symptoms of power problems.