Hi guys, Noticed my dipped light was not working the other day so replaced the bulb. It was then that I noticed that whether on dip or main beam only one fillament is on. The bulb is a 35W / 35W. I therefore assume that on dip there should be one fillament on and then main both should light to give a full 70 watt. I have put a multimeter accross the 2 wires (+ earth) and this confirms that when your in dip position 12 volt is fed to one wire and in the main position the other wire then becomes 12 volt. I have a sneaky suspicion that the bulb fitment may be an aftermarket job. Could someone confirm this please and let me know what is the correct fitment I should have. Bike is a 2000 XL1200 Sport. Many thanks.