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8 4" recessed lights went into kitchen to replace 160 watts…

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8 4" recessed lights went...
8 4" recessed lights went into kitchen to replace 160 watts worth of tube lighting. after about ten minutes the last light in the circuit goes dim and then back to normal... does this periodically. If that light is removed another one in a different location will dim and return,... no rhyme or pattern to dimming. Light is on dimmer switch but those have been switched out three times.
Submitted: 3 years ago.Category: Electrical
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Answered in 1 hour by:
6/11/2015
Electrician: Kevin, Licensed Electrical Contractor replied 3 years ago
Kevin
Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 4,474
Experience: 31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC General Class License
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Hello.....my name is ***** ***** I will be happy to assist you with your electrical question. My goal is to exceed your expectations on Just Answer!
1) Dimming on lighting typically suggests a loose neutral wire connection or splice somewhere in the branch circuit and/or using the incorrect type of dimmer switch.
2) A faulty neutral connection can reside anywhere from the branch circuit neutral termination on the main panel neutral bus bar to any box on the circuit. The circuit can easily tandem thru other wall boxes (receptacle boxes, wall switch boxes or junction boxes) before it reaches it's final destination.
3) What type of light bulbs are the can lights using and rated for? Incandescent, CFL or LED?
Does the light bulb wattage exceed the wattage rating of the can lighting fixture?
4) What type of dimmer switch is used? Is it rated for incandescent, CFL or LED's?
Incorrect type of dimmer switches can also cause a dimming problem. Need confirmation on the type of dimmer switch?
I suggest to temporarily install a regular ON/OFF snap switch in place of the dimmer switch to confirm if the lights still dim. If still dimming, then the problem is a loose neutral connection. If no more dimming, then the problem is attributed to using an incorrect dimmer switch and/or incompatible light bulbs. Proper dimmer switch types and bulb type compatibility are a must.
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