User talk:24.50.169.40

Loads of junk for anyone looking for the "history" of street-lighting. What wattages were used in the incandescent era for series-street-lamp operation, or for 120 volts? What were the wattages for mercury lighting? Why did the lighting levels soar in the HPS era. How did LPS wattages compare with all the other standard forms? How and why did CRI standards eventually creep into lighting codes and tables for street use? I could go on. Regards, George georgeliv.photo@yahoo.ca