It's the other way around, isn't it? I remember when our streetlights were all mercury.. Commutant @ 2010-02-15 07:39:58
They were mercury when I was a kid, I remember the blue lighting giving people a ghastly look. Then I think they switched over to sodiums about 20 years ago. I remember reading a letter to the WFP in which Stephen Juba gave a short rant about how pathetic sodiums were. Not sure why they switched, maybe it was cheaper? Now almost all the residental lighting is sodium. . Derek R @ 2010-02-15 07:56:39
I believe low pressure sodiums are cheaper to run than mercury lights. Plus they pop on faster. Mercury vapour lights can take a while to vapourize the mercury.. Andrew @ 2010-02-16 09:20:35
