From my *limited* understanding from what I have read, with replacement bulbs such as Philips Racing Vision +150% and Osram Nightbreakers parts of the filament or bulb are in a more *stressed* state to give you more bang for your buck in relation to light or the beam of light they produce.
Because the bulbs are in a more *stressed* or highly tuned state they are more prone to failure hence manufacturer warranties of only 6 months for example.
So I am thinking, instead of going for a maximum performance bulb which gives better lighting but also higher failure rates, that I should go for a slightly reduced performance which hopefully will give a better lifespan.
I have read stories and seen videos of of these 3rd party bulbs failing after a few weeks or months in some cases.
I am no technician, so feel free to correct anything I have put so it educates me and others on this topic.
Sapto mentions that they replaced the bulbs twice on their H7 lights, I would be interested to know over what period of time and what make and model of bulb?