@andy58 must be my age but I can't find the bloddy link to the lamps I bought on Amazon but they're the same generic one's in this ebay link albeit slightly cheaper, result!
H4 For Ford Transit MK7 Super White LED VS Xenon HID Main/Dip Light Bulbs Set UK | eBay
Ignore the "these will fit a Transit" bit, they're H4 lamps and will fit into the H4 socket of any H4 based headlight, as they have a fan mounted inline on the back of the lamp you won't be able to put the headlight lamp access dust caps back in place without modifying the caps to allow for the extra 10 mm of sticking outness, it's a ballache but realistically you might easily be underwhelmed with the lamps performance so initially fit them and try them out minus the dust caps, worst case they're not bright enough and you've wasted less than £20, best case you can join the H4 revolution where we prove that the H4 headlight is nearly fit for purpose.
These lamps will bring your lamp out warning sign up
great, and may interfere with the DAB
again they're very white but not daylight blindingly bright, tonight driving home when dusk was falling you didn't get those dull Halogen yellow pools of light in front, where the lights are not strong enough to pick anything out in particular but you know they're working due to the yellow patch on the road, with the LEDs you might see a road sign glow white but the road immediately ahead probably stayed at about the onset of dusk level I would guess.
Stop press and my lovely wife has found the Amazon advert so hopefully...
https://www.amazon.co.uk/HIVEHICLE-...xtremely-Start-Replacement/dp/B07QSJY5VT?th=1 they're the ones and identical to the ebay items, pay what you want.
To push beyond the performance of this cheap H4 alternative we could do with one of the lovely chaps with a full factory VW T6 LED headlight system posting an high and low beam picture taken down a dark and lonely cart track to give an idea of how far out these various cheapo and lookalike alternatives actually are, comparing how shite the humble H4 headlight is to the lights on your (any other VW product sporting LED and Hid lamps here) is irrelevant, let's get all altruistic, test empirically and save forum members money and skinned knuckles!... then save up for some VW LED headlights.