On Dec 22, 7:37*pm, Tim Lamb wrote:
Somebody has to ask this question:-)

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

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?

regards

no need if you've got a multimeter


NT