picture shows a ceiling fan with a built-in light.
The problem here is to figure out and
remember which chain is for controlling the light
and which is for the fan.
One nice thing about this design is
that the two chains have different pulls so
you won't easily mistake them for
two things to consider when designing a set of
controls. First, the user needs to
distinguish between the controls, so the
look the same. Second, the user
needs to associate each control with
the thing it controls. So a control should
in some way be
like the thing it controls. For instance, the
chain that controls the light could have a
miniature light bulb on the end. The chain
that controls the fan could have a miniature
fan on the end.
I don't remember which chain controls
the fan. I think it is the one without the yellow
tassle. That would be my guess, because the
yellow tassle looks like "rays" of light so it
should control the light.