Fluorescent Light Dim Then Bright

Older fluorescent light fixtures that flicker or only light up part way may just need a new starter which is a less expensive repair than a bulb.

Fluorescent light dim then bright.

Since it started doing this one time it lit fully for about five or ten minutes. It feels creepy and can also cause a terrible headache. Someone suggested it might be the ballast. The starter is located on the lamp frame there are typically two starters.

When first turned on it works fine for a minute or two then one of the tubes becomes dim and the other becomes dim and flashing. Our kitchen light which uses two 4 foot fluorescent light bulbs is very dim. One clue that your ballast is the reason for a non working fluorescent light is the light bulbs struggle to turn on. It s not the tubes as i ve replaced those and nothing changed.

I have a fluorescent light fixture that uses two 40 watt 4 long tubes. When a light starts dim and then gets brighter the cause may be an open neutral wire. This is one of the concerning problems with the fluorescent lights. There s nothing worse than having to be in a room with a flickering fluorescent light.

A good way to check that your ballast is the culprit is to turn on a voltage detector and hold it next to the wires supplying power to the ballast. Time to retire them and replace with leds. Dim fluorescent light bulbs and bad lighting ballast fluorescent light bulbs that are allowed to burn out in the socket can actually cause the ballast to burn out and need replacing. The utility company does repairs outside your house but if the problem is in the panel you need an electrician.

You ve already gotten your money s worth buying into them so do it again with led replacements in the same form fact. As i said in the intro we noticed this happening over a 3 4 week period. Both bulbs are very dim but evenly lit along their length and both the same as each other. Is this a sign the ballast needs to be replaced.

This morning they were completely dark at first but are now very dim again. The disconnect may be in the panel or it may be between the panel and the line transformer. If fluorescent lamps start to burn out or flicker then it is time to replace them and always replace both lamps as a pair for a longer lasting ballast. With the passage of time the fluorescent lamps start but glows dimly may flicker slightly but constantly and may exhibit rings of bright and dim light that appear to move up and down the length of the lamp.

When you turn on the. Consider the steps to fix the problem. It has recently started acting strange. I tried reading.

There are several failure modes for fluorescent lamps that make them a pita sometimes.