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Summary
Standard fluorescent UV lamp.
The fluorescent lamp with a shade so that overhead lights don't 'flood out' its effects.
Read all about how UV light works; see lots of photographs of what you will see with UV light, click here.
Technical
Wavelength: unknown, probably about 365mn
Lamp: standard fluorescent tube.
Overall size 6.5 X 1.75 X 1.5 inches (165 X 45 X 35mm)
Tube size 5 X 5/8 inches (130mm X 15mm)
Power: mains only (4ft cable + plug included)
More info, more pictures
Click on the picture above, see the security markings on an old (pre-2017) twenty pound note,
QUESTIONS & ANSWERS
Ask a Question-
Can this be used for examining coloured gemstones
It might work slightly. In the dark. Probably. But it’s really not designed for gemstones.
For gemstones you need the Ultra violet in safe-box