"Staffbull" wrote in message
ups.com...
I have a 70w sodium light outside which switches on with a photocell.
Whilst this is handy I dont require it on after about midnight so am
thinking of sticking it on a timer, I can recall reading somewhere
though that lamps of this type cannot be switched by timer plugs, am I
right ?

How about feeding the output of the photocell through a timer and then to
the sodium light?
I recently used a single channel central heating programmer this way with an
on time of 6 am so that the light comes on at 6 if it is dark and set the
off time to midnight. The photocell still turns the light off in daylight
and this way there was no need to bugger about with the timer as daylight
hours alter.

Adam