E
Earl Kiosterud
- Jan 1, 1970
- 0
Hi folks,
This is tangential to my post about an internally lighted sign, in which Dean and Douglas
are helping. It appears that we're going to be able to use only about two 48" fluorescent
tubes to not go over the city ordinance for maximum light. This is all very rough numbers
at at this stage. But this sign will be about 4' x 8', and about 9" deep, making it hard to
spread the light out uniformly from only two such lamps.
I divide the world into two types, politicians and scientists. The politician in me says
"don't worry about it, just use multiple tubes to get the even light, and put filters in to
eat up the extra light." But I don't like that side of me. The scientist in me says to try
to do it efficiently.
So I wonder if we can use more tubes, and run them at lower current. It would seem that
some extra inductance in the ballast would give us less current. I think I've read in Don
Klipstein's pages that fluorescents can fail prematurely in such conditions, but I can't
find the reference. Any thoughts on running fluorescent tubes at lower current? Bad idea?
If not, how to go about it.
This is tangential to my post about an internally lighted sign, in which Dean and Douglas
are helping. It appears that we're going to be able to use only about two 48" fluorescent
tubes to not go over the city ordinance for maximum light. This is all very rough numbers
at at this stage. But this sign will be about 4' x 8', and about 9" deep, making it hard to
spread the light out uniformly from only two such lamps.
I divide the world into two types, politicians and scientists. The politician in me says
"don't worry about it, just use multiple tubes to get the even light, and put filters in to
eat up the extra light." But I don't like that side of me. The scientist in me says to try
to do it efficiently.
So I wonder if we can use more tubes, and run them at lower current. It would seem that
some extra inductance in the ballast would give us less current. I think I've read in Don
Klipstein's pages that fluorescents can fail prematurely in such conditions, but I can't
find the reference. Any thoughts on running fluorescent tubes at lower current? Bad idea?
If not, how to go about it.