Re: Ballast or bulbs?

[richard reynolds]

assuming its all new, check the contacts on the bulbs make sure there all 100% lined up
work it back and forth to remove any wax used in manuf.

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richard reynolds



Tim Gilder > wrote in message
...
> Have 4 NO fluorescents in my canopy....supplementary lighting to 3 (250w
> MH). Just installed the fixture and fired up the bulbs....the MH work fine,
> but the NO tubes color up an inch or so on each end and that's it. Before I
> replace the bulbs or the ballast, I'm wondering if anyone has any thoughts
> as to the culprit?
>
> TIA
>
>

[Anthony William Smith]

I can't see how you would have all four faulty, and if they are burning at
each end of the tubes the filaments are ok and are receiving power.
Do you hear the distinctive click from the ballasts when turning them on?
What sort of wire and how long are they connected between the tubes and
ballasts?
Are the 2 pin "starter capacitors" that are bayonet fitted along side the
ballasts the same wattage as the tubes?
Are the ballasts, starters and tube wattages equally rated?
The problem is simple with a little electrical know how.
hope this has helped. regards Tony

My Tank:
www.users.bigpond.com/fishmann/



"Tim Gilder" > wrote in message
...
> Have 4 NO fluorescents in my canopy....supplementary lighting to 3 (250w
> MH). Just installed the fixture and fired up the bulbs....the MH work
fine,
> but the NO tubes color up an inch or so on each end and that's it. Before
I
> replace the bulbs or the ballast, I'm wondering if anyone has any thoughts
> as to the culprit?
>
> TIA
>
>

[Allamand]

What brand are the NO's?
i know that the T8 Zoo Meds will do that for a short time
then fire up all the way.

"Tim Gilder" > wrote in message
...
> Have 4 NO fluorescents in my canopy....supplementary lighting to 3 (250w
> MH). Just installed the fixture and fired up the bulbs....the MH work
fine,
> but the NO tubes color up an inch or so on each end and that's it. Before
I
> replace the bulbs or the ballast, I'm wondering if anyone has any thoughts
> as to the culprit?
>
> TIA
>
>