[Shop-talk] Next question, large area outdoor lights

[eric at megageek.com]

OK, since my last question was answered completely in less than an hour 
(thanks listers, I never thought to search amazon for the box.  Turns out 
it was there for $22.)

Here is my next question...

When I move into this house, there was a large mercury vapor light that 
comes on at dusk and off at dawn.  It's been pretty good, but here is what 
I was wondering.

Is there a better (more efficient) option for lighting a fairly large area 
at night?  Maybe one that comes on only with motion?  Or is a MV light 
pretty cheap to run and I should just go with that?

Thanks.

Shop content-  The light is mostly the path from the house to the shop. 
8>)

Eric P
"Be as beneficent as the sun or the sea, but if your rights as a rational 
being are trenched on, die on the first inch of your territory." Ralph 
Waldo Emerson