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How to hard wire fluorescent light fixture above your sink

Posted by Anonymous on


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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 79 Answers

SOURCE: Wiring new light over kitchen sink

Typically, the white wire is neutral. ANY non-white wire [except green] is hot. Green is typically ground.

Hot wire should go first to a switch or safety device [fuse or circuit breaker]. If this is an unswitched light fixture, the wires will go directly to the bulb sockets. Follow the color codes I just described.

Another solution is to get a continuity tester or ohm meter. The hot lead should show connection to the center contact in any socket.

Posted on Jun 11, 2008


SOURCE: my 4ft fluorescent fixture has

They make dimmable ballasts.
The Lutron dimming ballast shows an orange wire, not a brown >> but other manufacturers might call for different color.
I am guessing here, but ballast should work with Black Hot and White Neutral

I want you to answer back and say if the ballast works with just white and black, Thank you.



Here is a 3-way dimmer to control florescent ballast

Posted on Oct 19, 2010

  • 107 Answers

SOURCE: We have an existing wall mounted occupancy sensor

This is not a surprise. Many wall-mounted devices such as occupancy sensors and dimmers operate by leaking a little bit of power through the light fixtures. In the world of incandescent, this was rarely a problem - that little bit of current wasn't enough to excite the bulb. But now that we're living in a world of low-wattage lamp types, that little bit of current is now enough power to excite the lamp and cause what you're seeing. The added detriment is that little bit of pulsing that you see in the CFL can actually wear it out pretty quickly.

The short-term solution is to use the older-style, incandescent lamps.
Another short-term solution would be to attempt using another manufacturer's CFL or try an LED lamp - that's by no stretch a guarantee, you'd be rolling the dice with each lamp choice you made. The higher wattage the lamps, the less likely you'll see an issue.

There are two long-term solutions:
1) Add another lamp - the more lamps the control sees, the less leakage current that goes through each lamp. Several people have solved this by adding a 'dummy' incandescent load (like a 15W or 25W lamp) somewhere in the lighting circuit to take the brunt of the leakage.
2) Change the wall-sensor. Lutron makes one (MS-OPS6M-DV-WH) that has extremely low leakage current and may solve the problem. But the best way to guarantee it won't be an issue is to use a wall-sensor that connects to the neutral wire in the wallbox. Those devices take that leakage current and dump it out the neural wire rather than run in through the light fixture. Lutron makes one of those as well (MS-OPS5AM-WH)

Posted on Oct 20, 2010

  • 16987 Answers

SOURCE: FC12T9 12" Tube Circline FC8T9.

Leviton makes several of those style of passive infrared motion detection switches.
They are not without problems though. You have to adjust them for several different things.
One is the ambient light and the light off the object. The other is the delay time that the light stays on for.
There are issues with flickering and those switches also.
THe light fixture itself would not flicker if it is wired correctly and the bulbs are the right size and type. There needs to be a constant temperature also. Plus the age of the buld can cause flicker.

Posted on Jan 16, 2011

Blue Dog
  • 75 Answers

SOURCE: I installed a Decora white

Sounds like a problem with the fixture, not the switch. I'd say replace the ballast, or just replace the whole fixture.

Posted on May 08, 2011

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1 Answer

My fluorescent shop light fixtures sometimes does not go on and sometimes the bulbs just flicker without giving much light. What's wrong?

If your shop is in your garage, and it is cold outside, the two-pin fluorescent tubes don't work very well. Garage lighting (fluorescent) should be the HO (high output) type. It operates on the same voltage. The tubes are not interchangeable. You need a HO fixture. If your shop is inside your house, then flickering tubes (assuming that you tried changing them out with new ones) indicate a bad ballast inside the fixture. You can either change out the ballast, or for almost the same price, replace the fixture.

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How do you disconnect ballast wires from Lithonia Lighting Fluorescent fixture?

The feeder or supply power wires (black and white) are the primary of the ballast or transformer, if we are talking about house wiring. The secondary side of the ballast (usually red, blue and yellow wires) supplies from 600 to 800 volts to the lamps. This makes this job very dangerous. Are you sure you want to do this job? Buy a repacement fluorescent fixture, the cost of the ballast will be about the same as the cost of the fixture.

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How to retrofit fluorescent tube with led tube lights

First, corrosive or solubility chemicals will destroy the protective shell of lamps.
Second, the normal ambient temperature is -20 ° C to 40 ° C, if beyond the scope of this provision, it will make adversely affect on the lifespan of the product.
Third, before installing, do not connect high-voltage power supply, if there is damage to the external of lamp, switching to the engineers with qualifications for the repair and replacement; otherwise,the bulbs can not be replaced; take care of the the discharge of fire and shock.
Replacement Procedures Information:
First, the LED tube is generally a double-ended conductive LED lamp containing professionally designed built-in power supply, which can be directly input voltage AC100-240V,it can be mounted directly on a dedicated LED T8 tube light shelves, do not need to add other drives.
Second, the LED tube can directly replace fluorescent tubes, the user can remove the original fluorescent tubes and install LED tube, then double-check the configuration of lighthouse, following the figure A, B, C three installation diagram for installation.
Third, cut off the power for the installation, repair, maintenance and demolition work to avoid accidents.
Installation Guide:
led-tube-light-installation-instruction.jpgA, connect the power cord on the lighthouse to the external power lines, no need to distinguish neutral wire and line of fire fit with LED lamps , then rotate 90 °,then connect the power to light up.
B, if there is starter on light house , take out the starter, then just repeat the A
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1 Answer

Fixture not working after bulb change

"CFLs" Compact Fluorescent Bulbs (with built in ballast) must be labeled as dimmable to be used on a dimmer circuit.

Traditional fluorescent fixtures must have a dimmable ballast installed inside and can be used with standard fluorescent lamps.

Fluorescent lamps must be sized to match the ballast. CFL's are matched at the factory, but others are not. Older fluorescent lamp fixtures have a ballast inside. A type rating is to operate (2) 48 inch / 40 watt lamps. Newer fluorescent lamps are rated for 32 watts, and these will not work - or will have a greatly reduced life.

If you installed CFL's, the first thing I would do is install regular incandescent lamps and see if it works as expected. If not, something else is wrong - otherwise - make sure you've got the right lamps in the fixture.

Mar 17, 2014 | Electrical Supplies

1 Answer


Overhead fixture, as being a light fixture in a residence on the ceiling?

CCFL - Cold Cathode Fluorescent Lamp

Commonly just referred to as 'Fluorescent lighting'

Just clarifying because we are in the Laptop PC category

Right off hand I would say it's the Ballast, but it may be a system that doesn't even use a Ballast.

Beyond my area of expertise.

Would like to suggest you re-post in a different category, if the above holds to be true, (Except for my last statement)

Home & Garden > Lighting

If it IS a laptop, state the laptop manufacturer and model number.
The model number can be found on the bottom of the laptop.

Post back in a Comment.


Apr 05, 2013 | Computers & Internet

1 Answer

Testing photo cell

These devices typically require a minute or two to change state from ON to OFF when the the threshold of light and darkness is reached. Place black electrical tape over the sensor and allow a minute for it to turn the light on. Make sure that no light shines into the sensor or that the sensor can not see light in the night time.

Lastly, double check instructions and wiring. White should be connected to BOTH the neutral incoming power AND the light fixture's white wire(s). Most times, black is 120V source, and red is the switched 120V out to the fixture.

If it isn't working, make sure the lamps are good. This photocell is suitable for use with compact fluorescent lamps, fluorescent lamps and other fixtures that use ballasts and transformers as long as they do not require more than 840 VA.

Good luck!

Dec 29, 2012 | Carlon Home Products Wired Photo Cell Post...

1 Answer

Hunt dimming fd

Ok - a couple of things, first - when a dimmer is set to minimum; zero to a barely perceptible level of light output is expected. Second, fluorescent lamps have a much shorter range of dimming that the standard incandescent lamps have. It is not unusual for a fluorescent lamp to remain off until the dimmer is at or above the half way point in the dimmer's range. Third, you can not dim a fluorescent lamp or fixture unless the lamp or fixture is specifically labeled as being "dimmable". Use of a dimmer to control brightness of fluorescent lamps and fixtures that do not clearly indicate they are designed for dimming or to control the speed of motors like those in "paddle fan & light fixtures" creates a dangerous fire hazard condition. Most CFL (compact fluorescent lamps) that readily replace the screw-in incandescent type lamps and are clearly labeled as dimmable, can be used with a standard dimmer. The traditional (non-CFL) fluorescent fixtures that have a internally mounted and hard wired internal ballast need a special dimmable ballast to operate.

Good luck!

Feb 02, 2012 | Philips Electrical Supplies

1 Answer

Hardwiring shop lights to an existing light. I have a flourescent shop light with a two prong plug on the end of it that I would like to hardwire into another light fixture in my garage. How do I know...

If the prongs on the plug are of different sizes, it's a polarized plug and the smaller one is the hot wire, which should be connected to the black wire in the existing fixture. If the prongs are not of different sizes, then the fluorescent fixture doesn't require a polarized plug, and either wire will do.

Nov 29, 2010 | Hammering

1 Answer

3 way switch and dimmer. Switch and dimmer both turn light on and off. However dimmer does not dim the light. Dmmer had performed properly until replaced light (did not change dimmer or swith wiring only...

Please describe the old light fixture and the new light fixture. If the new light fixture is fluorescent, then using a dimmer with it won't work and is a fire hazard - unless you have a specially designed ballast which is designed to be used with a standard dimmer. If that is what you have, then the ballast in your new fixture is bad.

May 10, 2010 | Electrical Supplies

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