15 Dec
2009
15 Dec
'09
3:27 p.m.
On 12/15/09 9:39 AM, "Chuck Guzis" <cclist at sydex.com> wrote:
On 15 Dec 2009 at 0:14, Geoffrey Reed wrote:
Lots of clouds here in the seattle area currently. Been about 20 years
since I knew anyone with grow lights :)
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