analyzing my fluorescent tube problem


Old 01-05-14, 11:41 AM
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analyzing my fluorescent tube problem

In my garage I have two 96in florescent tubes .. one of them was making an awful humming sound and was displaying the emitting light as pulsating.. also the end of the tube(s) was displaying black.. so I took them both down and went to my home depot and picked up two new Phillips tubes (under $5.00 each for a 96in tube was pretty good., ) both installed quickly .. but now when the light fixture switch is turned on there is a 'low humming' sound and inside both tubes there is '' wave after wave '' of blacklight sliding down inside the tube inside. plus both lights are not very bright..

what is required next.. ?? Do I have to replace the ballast ? or is there one other thing that can be done.. ? thanks

Last edited by pcboss; 01-06-14 at 07:52 PM.
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Old 01-05-14, 11:59 AM
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Let them run for a few hours until the mercury gets fully vaporized.
Old 01-05-14, 02:22 PM
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What is the temperature in your garage? If you have older, magnetic ballasts they have a hard time starting in colder temps. Modern electronics ballasts handle cold temperatures much better and are probably in your northern location. But, it's hard to replace working ballasts. Like PJmax mentioned leave your lights on for a while and it will kill two birds with one stone; heat the bulbs up and vaporize the mercury. The bulbs should start easier after they are broken in but starting in cold temps is one of fluorescents weaknesses.
Old 01-06-14, 04:36 PM
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temperature is between 40 and 50 F / or 5 to 10 C ..

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