I another thread I have been complaining about the narrow and shallow high-beam of the GK5 Jazz's factory LED headlights. To make it visible I made a comparison with pretty decent H4 halogen headlights of 1989 Peugeot 309. Unfortunately I don't have a camera, where I could fix the aperture, shutter speed and sensitivity between pictures, so the difference in brightness cannot be evaluated from these pictures, but they prove my point regarding the beam size.
Pictures are taken on same point holding the camera on top of the steering wheel. There is about an hour time between the shots, so the dark blue sky visible at the end of the road in halogen pictures is already all black in LED pictures.
The low-beam of the LED headlights has very bright and wide beam, whereas the high-beam does not give so much more. You can see that the high-beam of the H4 halogen gives more light to sides and shows higher, which is much better on winding and hilly roads.