Have the H4 used in a new Fiat Panda, needlessly. I can not say that the H4 the light cone illuminates much further, but powerful, even on the sides. It is twice as bright, even if 100% it says more light. I had not expected, since light output and brightness are connected in any linear function.
If needs to be changed, then it should not be a bargain from the hardware store. I think it's worth the money already!