When one realizes that the UV lamp 6 GPM or 12 GPM that we just received does not work on the ultra-violet, there are 3 tests to do.
The first test to check the conciste black case where the fuse is, because it is possible that in the end life of the previous lamp, it has suffered electric shocks. It will suffice to replace the fuse if needed.
For the second test, check that the quartz tube is completely dry, without fog, without traces graces. To clean, you should use a dry microfiber.
Finally, for the last test, you must provide yourself with an ammeter to determine the conductivity of the lamp. We must entrendre a "beep" when the pole + and the pole - are not broken. This helps to know that the filament is not cut or soldered.