>
> The AZ210 I'm using has four 15W Sylvania F15W/350BLB-T8 tubes on each
> side, spaced about 2" apart, with a rather odd metal reflector that
> looks like it's been hit repeatedly with a very small hammer. Distance
> from board to bulb is maybe 1.5" or so, through a sheet of what appears
> to be glass (though is probably quartz-glass or something similar that
> doesn't block UV).
>
>
Ordinary glass does not block much of the long wave UV used here, a quartz pane would be very expensive.
/BL tubes are a better choice than /BLB. The Woods glass used to block visible light in the /BLB also blocks some of the UV output.