do headlight nukers really help the driver?
my understanding is...
old style headlamps, in a properly aimed system...
the hot spot is maxed out.
new style, the extra light goes to
the side, where you may or may not need it,
or even unhelpful,
and/or,
mis-aimed to help the driver
The newer BMW X5s have adaptive headlights that illuminate bends by adjusting the swiveling bi-xenon headlights as soon as the driver turns the steering wheel.
The four lamp Bi - Xenon systems on some cars (BMW for example) use beam deflection on one pair of HID Xenon lamps for main and high beams. The second pair of lamps contain standard halogen bulbs for the headlamp flash function, they are not used in normal running. HID lamps take a few seconds to reach full output and their service life is seriously reduced by flashing on and off, for these reasons they are not currently used for any flash function.