"Michael Bell" wrote in message
. uk...

Oh yes, there is a "permanently on" switch, but do you advise me to
use it?


No reason why not to, that I can think of.
You can get the desired off periods with the external timer.

If you could give me product reference source for this "Powerplant"
then this would help.

Aldi have some timers on special offer, you could consider

http://www.aldi.co.uk/uk/html/offers...uys3_16304.htm

Regards
Pete
www.thecanalshop.com