On Wed, 22 Dec 2010 19:37:28 +0000, Tim Lamb wrote:

Multi function filament bulb set. Chinese manufacture (in case you
wondered) fuse OK but no lights. Appear to be well made.

Checked that all the bulbs are well seated. Checked that all the
bulbs will pass current? Tree light bulbs have a mechanisum that
allows current to flow when the filament fails, this some times
doesn't work.

Control box is sealed and has a single pushbutton to select the
operation. Is there any point in forcing the box open in the hope of
by-passing the electronics?

Always worth a try.

--
Cheers
Dave.