DIYbanter - View Single Post - Dusk-to-dawn security lighting for a farmyard ?

Andrew Gabriel

In article ,
writes:
70w should be about the right power for that size too

You need to mount it high up too.

Ideally, you should get the photometric data from the light's
datasheet, and work out the correct mounting hight to cover
the area. In practice, you might find this data doesn't exist
unless it's a good make, and that the mounting height it
gives you is higher than you can manage.

If you have neighbours, check that either the light doesn't
spill onto their property, or that they don't mind. If there's
a road nearby, check the light doesn't cause dazzle to road
users. Always adjust the light so the beam cutoff is below
horizontal to minimise light polution.

--
Andrew Gabriel
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