I traded an 06 Road King on a New 16 Ultra. I want to put the light bulb the RK Had on the Ultra. Will it fit? Do I need to Change Plugs? Does it require more Amp That the "DayMaker" (pos)!
I've tried reaiming and it is just Ok, If I'm going straight. Turning I may as well close My eyes!
The old road King was Awesome, Giant circle of Light in front of Me. I could see the animals in the trees. Lots of deer where I live due to overcrowding and they are in the street often. The road I drive 60 on I came home at 20 Last night!

 

Both should be H4 bulbs...interchangeable, but would wonder why the new bike's output isn't as good/better than your 06...?? Have you taken back to dealer for assessment?

 

New Bike has the "Daymaker" new and improved! Ya Right. Only shines bottom half of circle. when You lean bike that half lights up highway peg real good, nothing in front of when You are going. Found lots of pro's and cons on aftermarket Leds. No I haven't been to Dealer. Especially at night. I just reaimed and tested last night. Very unhappy!!

 

something doesn't sound right cause the Medallion headlamp in your '06 should not be better than the daymaker.

 

somethings not right here. the daymaker LED should utterly blow your old road king h4 out of the water in terms of depth and brightness.

 

I have an 01' RK and recently installed the HD Reflector LED, not happy at all. Old headlight lit the road up really well with no dark spots etc. wasted $450.

 

OP, make sure you have your passing lamps on. The new daymakers are supposed to be amazing except in turns but the passing lamps fill in the rest.

 

Led's are very directional vs the halogen that spews light in all directions. I like them for non directional applications like run,turn and brake lighting though.