Transporter HQ V2 lights with LED bulbs, where to place beam convertors for Europe

[Blind-dog]

Hi All, we're heading off to France in a couple weeks to drive down to Italy - Autohaus T6 Campervan with Transporter HQ aftermarket headlights with their LED bulbs.
Will likely use Mont Blanc tunnel route so need to be sure where not dazzling oncoming traffic - does anyone know how to work out where to our the Eurolite beam convertors so lights will be ok? Thank you

 

[BognorMotors]

At night drive your van up to your garage or a wall, put the lights on then you can play about with the beam convertors, placing them on the lights to reduce the light kick up.

*are the THQ lights level already?