Make all street lights LED.

Then you will only need to change bulbs every 20 years.
Also the light is more like moonlight which is far easier to see by at night than sodium or mercury lights which stimulate the day vision receptors and inhibit the the night vision rods from sensing night vision signals correctly.
It has taken millions of years for our eyes to work very well in moonlight. Daylight mimicing light bulbs outside at night defeat this evolutionary adaptation.

Also LED lights use 1/60th or less electricity.