The problem with 9004 is that its low-beam is only 45 watts, compared to other types (H4, 9007, etc) that have 55W low-beam. Obviously this makes 9004 weaker than the other bulbs.
For this reason, some people try and swap 9007's into the 9004 socket (to get the 9007's 55W low-beam), often with poor results (they look like they are interchangeable but they are not because high and low beam are switched around).
Those bright xenon 55w=85w blue light specials are scams that actually give you LESS light only add to the confusion.
So what is the solution for a 9004 user?
Wagner BriteLite 9004BL. It is a 9004 bulb with a 55W low-beam (and of course, the standard 65W high beam)
Has anybody tried these?
For this reason, some people try and swap 9007's into the 9004 socket (to get the 9007's 55W low-beam), often with poor results (they look like they are interchangeable but they are not because high and low beam are switched around).
Those bright xenon 55w=85w blue light specials are scams that actually give you LESS light only add to the confusion.
So what is the solution for a 9004 user?
Wagner BriteLite 9004BL. It is a 9004 bulb with a 55W low-beam (and of course, the standard 65W high beam)
Has anybody tried these?