I've seen people asking in both these groups before, so I thought I'd direct
you to
http://www.maplin.co.uk - code N54AT - 2 solar garden nightlights for £14.99
Seeing as these retail for up to £39 each in the back of newspapers, that's
got to be a bargain.

I got a pair today - they charge their own internal normal nicads from the
sunlight during the day, but seeing as the sun was a bit lacking I gave them
a helping hand with a charger!
They're looking good out there right now..probably keeping the fish awake
though!