Two things I wanted to mention... first: the flourescent battens are indeed plastic, not metal!
The tubes used have weird wattages (forgot the exact numbers) so people (I guess municipial employees) won't steal them.
Second, a new type of street light has popped up where I have absolutely NO idea what it could be.
It's definitely a vapor lamp that can be used in the same fixtures as sodium lights without modifications, but the light is white, slightly yellowish, absolutely looking like an incandescent bulb! I love them because of their real nice light! They feel much brighter than the sodium lights they replace.
