Energy Efficient Fluorescent Light Bulbs - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 06-18-2011, 06:20 PM   #1
Join Date: Jun 2011
Posts: 1
Rewards Points: 10

energy efficient Fluorescent light bulbs

I replaced old fluorescent light bulbs with new energy efficient ones and now the lights just keep flickering on and off and I have used 2 different sets and they keep flickering. Any thoughts what could be the problem?


Samson911 is offline   Reply With Quote
Old 06-18-2011, 06:50 PM   #2
Knucklez's Avatar
Join Date: Oct 2007
Location: ontario canada
Posts: 1,090
Rewards Points: 942

are your lights on a dimmer switch?


"if you can't be handsome, at least you can be handy" -Redgreen
Knucklez is offline   Reply With Quote
Old 06-18-2011, 07:12 PM   #3
Bud Cline's Avatar
Join Date: Mar 2006
Posts: 10,705
Rewards Points: 558
Default old are the light fixtures. In the older fixtures the flickering can also be cause by bad starters. The starters (if the fixture has them) are the little silver-gray cans/tubes about the diameter of a nickle. They twist out and in and can be purchased at any hardware store.

If the fixtures don't have starters then maybe the ballast(s) are going bad or not capable of supporting the late-model bulbs. If that is the case it is sometimes less costly simply to replace the fixture totally.
Bud Cline is offline   Reply With Quote
Old 06-18-2011, 07:26 PM   #4
Electrical Contractor
kbsparky's Avatar
Join Date: Sep 2008
Location: Delmarva
Posts: 3,368
Rewards Points: 2,000

Did you replace T-12 bulbs with the new T-8 type? Unless you changed the ballast, you could have operational problems by making such a substitution....

Life is uncertain -- eat dessert first!!
kbsparky is offline   Reply With Quote
The Following User Says Thank You to kbsparky For This Useful Post:
electures (06-18-2011)
Old 06-18-2011, 11:56 PM   #5
" Euro " electrician
frenchelectrican's Avatar
Join Date: Apr 2006
Location: WI & France { in France for now }
Posts: 5,369
Rewards Points: 2,000

Also what more with some of the T-12 ballast will not run 48" 25 watt bulbs at all { I have see this more than once in both USA and France side }( some 34 watters may not work with some T-12 ballast as well especally on cool days or have A/C blowing on the bulbs that can compound it )

Double check the label on ballast to make sure you are using proper bulb it will make a big differnce on operation.

The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )
frenchelectrican is offline   Reply With Quote
Old 06-19-2011, 04:47 AM   #6
dmxtothemax's Avatar
Join Date: Oct 2010
Location: Brisbane, Australia.
Posts: 4,326
Rewards Points: 5,610

Have you checked that the supply is correct and stable ?

The older style floro tubes operated on a slightly lower voltage
than the newer quick start tubes.
You can tell the difference by looking at the diameter
of the floro tube, the older ones were larger in diameter.
So if you put a modern quick start tube into a fitting
designed for the older style tubes, it might not work correctly.

Also modern tubes do flicker more than the older ones,
Because they have taken the mercury out of the tubes.
Some new tubes will flicker for a short time (15 mins )
at first use, but this will fall away to a low level.
It is perfectily normal for them to flicker a little bit.
probably as a result of minimilist design and high efficency.


dmxtothemax is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing Kitchen Light - Fluorescent Ballast llmercll Electrical 23 02-08-2011 10:45 AM
Dimmer Switch, Energy Saving Light Bulbs PCMLR Electrical 6 10-11-2010 11:04 AM
4 tube fluorescent fixture with two bulbs? dyeager535 Electrical 2 02-02-2009 05:51 PM
Stupid question about energy efficient light fixtures farmerde Electrical 16 11-16-2008 09:26 PM
Energy efficient new home? kcrossley2 Building & Construction 10 01-27-2007 09:04 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1