15 Dec
2009
15 Dec
'09
9:39 a.m.
On 15 Dec 2009 at 0:14, Geoffrey Reed wrote:
So, anyone have a good source for UV bulbs between 350
and 440 nm ?
At a reasonable price?
Since this is long-wave UV (UVA) , you don't need the germicidal
lamps, which are made to produce light at about 250 nm. An old
consumer "sunlamp" for tanning or a low-pressure mercury vapor
outdoor luminaire are suitable choices. Or you can borrow a metal
halide "grow light" from your friendly local pot farmer.
Sunlight also works well, if you get the stuff this time of year (he
said, peering out the window at the dark gray sky).
--Chuck