Arrow apparently likes to lose money on us, I don't mind accommodating them... 
Little late, but looked over my SP33, opened it up, etc. So, just ordered the boards and switches from Arrow
Good timing too, because did you see the Anniversary sale at the Sofirn Ali store? $20 in 2 days here: https://www.aliexpress.com/store/product/Sofirn-SP33
Not to mention, makes a nice host for the new 3V XHP50.2 
Hello! I have sofirn sp33 (xhp50 6V). This flashlight travel with me on many motorcycle trip. Unfortunetly driver is broken. Diode still live.
Any sugestion, how can I modify this flashlight?
Sofirn sells the driver for the SP33 V3. It looks like the V3 uses the 3V XHP50, so you’d have to swap emitters too.
jasontheguitarist, thank you for your answer. I saw this driver on official store Sofirn in alliexpres. I'm afraid about microswitch, because is placed on a perpendicular plate.
There’s not even a picture of the SP33 V3 driver on their ali page, so who knows if it looks like the old driver you have.
That's right, in the meantime I ordered a CF FX-30 30mm 6V.
At the end it will come out that it was cheaper to buy a new flashlight ver3. 
That’s normally how it works out 
Let us know how the repair goes.
When I was waiting for shipment driver I turn on 'safety mode' and I:
- Ordered new sp33 ver3
- Ordered driver for sp33 ver3
And now waiting for the shipment from "my friends"