The cut-off rise angle of LHD lens are the same for both lens, where the rise angle start at headlamp center and rises to the Right @ a 15 degree angle .
The reaosn for this is you want the right side of the road lit on LHD/right hand traffic direction. [ RHD lens would be the opposite , with the rise going to the left of the car for left hand traffic.]
This not only keeps that side of the road visible , but it also keeps the oncoming traffic from headlamp glare. The other cut-off is a line across the lamp to keep the focals on the raod, not in the trees. You can plainly see these two optical focal lines if you drive up to a wall at 25 feet.
That is how you aim the lamps after install.
I use the back of a building in a strip mall and some duct tape at night. They are very precise b/c of the superior optics. Light Years ahead of DOT crap.
The numbers I gave you are right off the Bosch lens on one of my cars and they are E-1 Euro lens/LHD
http://www.midstatedmc.com/tech/aim.htm
Note: I kick the vertex of the rise angle [Kink ] over to the right on the left headlamp adjustment by about an inch b/c I travel mostly on narrow, single lane roads...and dead on with the right one.
Personal preference...........
To show you how behind the times the US/DOT was , I even have Euro E/1 Code headlamps in my Euro 1967 250sl... and use the same aiming as the 94/95 E320 w/Euro does..
Only took the DOT bureaucrats 30 years to finally admit that the Euro headlamps were superior and safer than sealed beam headlamps....