Why would Sofirn have two model numbers for the same headlamp? Or perhaps they differ somehow?
They seem to be identical, but one is specifically for customers located in the EU who want it shipped from Germany. Likely some tax import/export issue.
H version probably have"upgraded" all on 1 PCB driver.
Does this light have any kind of battery level indicator?
both numbers are listed on the same product, on the same page(per each USA, EU, or CH warehouses), with no choice in what you receive, so I’d assume its something like an old name and a new name; no product difference.
OR, since it/they are Not manufactured by Sofirn, just sold by them, it could be manufacturer differences, or the manufacturer number, and then what Sofirn calls it.
Hard to tell, probably best to just email or “message” them and ask…
Or tag @Sofirn here.