I looked at getting a #6024 Sylvania sealed beam. Not available in N.Z. or Aussi. I found some info on the web though. I ended up ordering through Brent a Xenon/Krypton lamp that went right in. It’s a H 4 8500K H.I.D.. Comes in a plastic box with 2 lamps. Brent has them listed
www.newspeedmaster.com . I do some night rides to another city 3 hrs away. Plenty of light and heaps better than the stock one.