what is the difference between the bulbs?
does anyone know the difference between the 9007 (HB5) and H4 (9003, HB2) bulbs for headlights?
- 1 decade agoFavorite Answer
they all have diff. plug styles/shapes.
- DarinKLv 61 decade ago
The lamp base itself could be different. The connectors should be about the same. The wattages of the bulbs themselves come into play.
- dodge manLv 71 decade ago
i own a repair shop,and if im not mistaken one is a high beam and one is a low beam,and the connectors are different on them also,,i haven't installed many of these yet but i believe this is correct,,good luck i hope this help,s.Source(s): been a certified mechanic for 36 yrs.