|The argument for using projectors for
street lighting, is POWER, you can use mercury lamps for
low powers with circular diffusers, very famous in parks
or playgrounds, or starting with sodium high pressure or
low pressure, arriving to the famous metal halide lamps,
with powers up to 2000watts, the poles used in any of the
cases, start with 6 mts up to 12 mts, shapes of the fittings
and diffusers, quite simple but always looking for effectiveness.