Re: G.E. Lighting

[gary l meyers <garymeyers at juno_com>]

The more expensive ballast are unquestionably better than the cheap
(under $10.00) shop light ballasts but the phosporus coating of the lamp
starts breaking down after about 6 months of 10 hour/day usage.  From
that point on it becomes a downhill slide in terms of usefull lumens in
the intended light spectrum.  Some special purpose lamps (like tanning
bed bulbs) start breaking down after about 2 or 3 months.  

I know we are all cheap and I for one refuse to throw out a bulb that
still glows even though I know it is now blue/green instead of warm
white.  

My whole point is that we all tend to try to get more life out of the
bulbs than It really has.

     
On Tue, 2 Apr 2002 08:48:25 -0700 Christopher.W.Vasold at jci_com writes:
> 
> Drummond Howard wrote,
> 
> "I'll have to ask our electrical engineer that does lighting on 
> weather the
> ballast can increase the output and life that much."
> 
> Last year we replaced some old magnetic ballasts and T12 lamps with 
> some
> new Motorola High Output electronic ballasts and T8 lamps in a
> manufacturing production area and the difference was dramatic 
> compared to
> the same replacement done with T8 lamps and standard output 
> electronic
> ballasts. I would assume that it would cut back on the life of the 
> lamp.
> A company called Advance makes a ballast that has a feature called
> Sequenced soft start that extends the life of the lamp. Also the 
> more times
> the lamp is turned on and off will contribute to lessening the lamp 
> life in
> the long run.
> 
> 
> 
> Chris Vasold
> Senior Systems Estimator
> Tempe, Arizona
> 
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