HI all have just bought after market headlight for Dragstar, Looks great but problem is, when switch is at dip, light is main beam. When switch to main beam, light is dipped. Have tried changing wires over but still same. Any Ideas folks? ......

At the risk of sounding completely dumb... is it possible to put the lamp in upside down?

Going to hide now

The lamp will only fit one way but good point.

Swap the wires from switch end or from the connector socket in between...it aint a big issue mate...

You may use the wiring diagram, focused onto color codes, in the service manual...

Tried everything, nothing worked. Returned headlight got replacment, works fine now.