How can I distinguish mercury vapor streetlights from metal halide streetlights?

حديثاً, there have been many accidents involving people being electrocuted by the street lights, especially on rainy days. What kind of fault protection is used on streetlight circuits?

I want to know the best height for my solar street lights. It is hard to balance between the brightness of the light and the costs of the pole.

تستخدم مصابيح الشوارع HPS على نطاق واسع في جميع أنحاء المدينة, وأتساءل لماذا نختار الضوء البرتقالي والصوديوم كمصدر للضوء.