Quartz lamps cannot produce anything above 4900K but those listed are way better than stock - actually almost any replacement is better. I did run 120w lamps w/o any trouble for several years until I got the HIDs but did have to go 5amps higher for each headlight fuse to keep from blowing them on high beam. But NO problems with the wiring or enclosures.
I offer similar Quartz bulbs (4800K) for $35 delivered.
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