headlights.... leds,halogens,hids,projectors etc ect

[7omly]

With regards to voltage drop from the battery to the lamps the distance on a bike shouldn't affect it but the guage of wiring will. Years ago I had a VW Golf mk2 which had abysmal wiring which gave 10.8v dip and 11.3 on main with the engine running. Two hours later fitted with a custom wiring harness containing a separate relay for dip and main the readings were a revelation as was the amount of light available. Engine running 13.1v dip, 13.4 main. Obviously you're unlikely to get those voltages on a bike but you'll get an improvement.
I simply bought two sets of HID. The cheap Chinese ones everyone saod not to get. They're for a car so I have a spare full set of both H4 and H1 bulbs and ballast. The slim ballasts just fit inside the fairing on top of the headlamps. I had to use self-amalgamating tape to the headlamp plug fittings. They are only 35w bulbs but the light output must be 10 times better. My only gripe is that main beam isn't much better than dip but at least I can now see well enough to ride at legal road speeds. I maytry a different manufacture bulb to see if I can better the maain beam but if I can't I'm still happy at the improvement which cost less than £30 and I've still got a spare set to allay any fears of poor chinese manufacture.