Caution - Damaged headlights

At first I was excited, wrote this 5-star review:
"I used to date P43T (H4) Philips (60 / 55W), which were significantly yellowish.
These bulbs I bought, to see for how long budget lamps compared to more expensive branded products.
From the brightness and light color of these lamps Anyway, I'm thrilled.
For durability, I can not say much for two weeks - but will come.
Fast delivery, stable packaging. Everything OK."

## Update 11.21.2014 ##
Unfortunately, the enthusiasm has turned into horror.
One of the two lamps has already failed after 2 months.
And not only that - the lamp has broken downright and has littered the headlight interior with splinters.
Great. Now I must go to the workshop and let expand the headlights or even try with a hose and vacuum cleaner to get the splinter out.

The seller "KDS-trade distribution" says only: "Here it is not a supplier warranty on lamps.".
A clearer answer to my question "cheap product vs. brand-name product" I could not get ...

## Update 02.22.2015 ##
Now the second lamp has since given up spirit. The lights go broke too quickly. We run daily about an hour on normal roads - so no extreme wobbling nor particularly high continuous load.