You can run one of these and not overload your wiring.
I have used this 85/80w on over a dozen bikes and not had any problems.
Read the product description for the 85/80w bulb, I have not even had one burn out either. I do change the bulb every 5 years because they do lose some of there lumens over time(all bulbs do). For $20 it puts out a lot of light.
I tried a few different "premium" H4 bulbs and was not sure I could see farther although some were whiter and some cast a broader light. Consumer Reprts did a study in 2005 and found NO improvement in distance viweing between preium and standard H4 bulbs. Since then there have been some slight improvements but the bulbs have a shorter lifespan. In the end I went back to standard H4. Our headlamp shells just don't allow much improvement unless you go full HID.
Silverstars DO shine further and brighter and have a better dispersion pattern. Been running one since i got it in '06 and only replaced it once in 25,000+ miles. Thinking of going HID since my friend has a spare 1-off set with no twin.
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