I have the bulbs for my Opel Calibra (lens headlamps, only 7cm high) and replace them unbranded pears. The difference is truly remarkable, the light is visible and the white brightness to a much higher ... but it is of course not comparable to xenon bulbs. Yet who wants more light on the car is really correct the differences are clearly visible and they also invested in its safety. I have the pears two months there and about 3000km on the clock, that light was almost all the way. So once you think;) I
Conclusion: Good pears with recognizable better and whiter luminosity than anything I had previously from the hardware store. Although the performance at the expense of durability! But there are just only H1 bulbs and can also use the small Osram Super Pear against tarnished headlights do nothing!