I made a couple of those 20watt mr16 based lamps
for some night-time trail riding. While I like them, I noticed
when someone behind me had one, my shadow cast from it
was awful. Other purchased products that I've seen (granted,
only a couple) cast such a small beam that there is no problem.
But the beam is still round and if raised up would be the same
My question: every high end auto halogen (don't know about HID)
is designed with a horizontal cutoff. are any bicycle lamps?