| Listed in parts books | Not catalogued by year yet |
LED BULB H4 + OR - EARTH
H4 LED replacement bulb wired for either positive or negative earth setups.
This is an H4 LED bulb, wired to work with either polarity, so it doesn't matter which way your headlamp shell grounds the circuit. That plus-or-minus earth compatibility is worth noting because a lot of older British electrics were set up with positive earth rather than the negative earth most modern parts assume, and getting that wrong with the wrong bulb can mean nothing lights up at all.
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We don't have much more on file for this one beyond the basic listing. If you're swapping a sealed-beam or standard H4 halogen setup over to LED, give us a call and we can talk through what else might need attention on the wiring side before you order.
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