Hella lighting (4kq) -- cops search?

[Jim Haseltine]

----- Original Message -----
From: "Robert Myers" <rmyers at oak.total-web.net>

> This is "sodium yellow".  The visible emission
> spectrum of sodium consists almost exclusively of two very bright lines of
> quite close wavelength in the yellow portion of the visible spectrum.
This
> is the same yellow light you will see at certain industrial sites which
> have bright yellow night-time lighting.

Adding to this - there are two types of sodium lighting. Low Pressure and
High Pressure.
LP provides an orange-yellow light, is often used for steetlighting while HP
gives that really bright golden yellow and is usually used for
floodlighting - especially for buildings constructed of pale coloured
stones.
Mercury lighting is white, although some types tend to have a slight blue
tint.

Regards,

Jim Haseltine