Comments on: Are LED Fluorescent Tubes Ready for Prime Time?

By: Martinkuantan

Martinkuantan — Tue, 27 Mar 2012 01:59:00 +0000

If you can solder, the bad SMD chip can be replaced with a new chip. In addition, the driver can be replaced if it fails. This allows you to repair vs. throw away when anything goes wrong with Fluorescent.

By: Ergonomic consultation & service bay area

Ergonomic consultation & service bay area — Thu, 05 May 2011 12:03:37 +0000

I have read your whole article I like this post thanks you are sharing a great article information

By: Bytes Land

Bytes Land — Fri, 25 Mar 2011 07:26:27 +0000

Interesting article and comments. I think the most important issue was left out. Reduced air pollution, green house gases and for new projects the avoided cost of electrical distribution equipment and HVAC loads. When the whole system is considered, I think the LED technology is clearly the winner. So add about 20% for avoided first cost of air conditioning and about 15% for reduced HVAC electrical consumption and we will be in the ballpark.

By: ELS R&D

ELS R&D — Thu, 17 Mar 2011 08:36:57 +0000

LED’s are exciting & every company is looking for the next great product to drive there business into the future but be careful. I’m a little taken back by some of the quote “facts” posted on Leds vs T8 Flourescents in this blog! Led 4′ tubes are claimed to be rated @ 1500 lumens per lamp (average of 1000 lumens less then most F32T8 800series flourescents)& a lamp life of 50,000hours yet are not L70 rated(our company has been field testing Led tubes for a while know & here is our findings: at just shy of 16,000 hrs on our hourmeter, we’ve had 2 of 6 led lamps being tested fail within day of each other. It was likely do to a heat issue but that’s just our take, we have also recorded a lumen loss over 30 percent!) Maintained lumens is huge & Leds @ this time can’t hold a candle to modern day long life T8 lamp by any manufacturer….lumen loss of 6 to 10% over 30,000+ hours on virtually every brand of 800 series T8 lamp we have tested & flourescents my friends are here to stay for a very long time! On Sept 21, 2006 we stumbled accross a gentleman looking for investors to back his “LED Flourescent tube retro lamp” & we still have his sample lit in our shop. It’s been operating 8760hours a year, never cycled on/off, after 4.5 years the lamp went from 1040 lumens to 601 lumens….approx. 40% lumen loss! LED technology has come leaps & bounds with regards to color temp & lumens however lumen loss, heat issues & cost are the 3 strikes that are keeping our company away for now anyway! With modern day premium electronic ballast(5 yr warranty) & XL long life reduced wattage 800 series T8′s(3yr warranty by most manufacturer’s), lamplife in excess of 36,000hours, ECO friendly low mercury content & maintained lumens in excess of 90% over the life of the lamp…the winner is flourescent over LED for now! Please refer to the DOE(Department Of Energy) fact specs. for tested LED Tube Lights & there findings or visit the DOE seminars held at LightFair 2011 in Philly,PA May 15th thru 19th.

By: Christopher

Christopher — Tue, 08 Mar 2011 01:40:39 +0000

I believe that LED bulbs have become an excellent replacement for fluorescent. My company recently did a retrofit of t12 and t8 bulbs with LED. We also replaced 8 foot fluorescent tubes. The customer is extremely satisfied. They love that the lights no longer hum or flicker. They have been installed for about 3 months with no issues.

By: Barbara Ivers

Barbara Ivers — Mon, 28 Feb 2011 14:34:44 +0000

I would like to know if there is any harm to eyes from to much fluorescent tubes- we just had some installed in the hall way where I work, when I enter the hall my eyes water (contacts) and I have to leave the hall. Is there a way to measure if is is to much? Please help!

By: Stephen

Stephen — Thu, 13 Jan 2011 01:03:16 +0000

This report is misleading. First of all, LEDs do produce heat as do all light sources. This is a major issue affecting longevity, especially if they are in an enclosed strip where the heat can build up. Also, the light output of the LED reftrofit lamp is about half that of a T8 or T5 fluorescent, which means that unless you are comparing it to a fluorescent fixture with extremely bad optics, you would have about half the light level with LEDs unless you used 2x the number of lamps (at 2x the cost and 2x the power consumption). There are several other things that are incorrect or misleading in this article. Note that LEDs are great for special applications such as display cases, color changing and certain exterior lighting applications. In answer to the question above, no, it is usually not possible to replace individual LEDs in these type of fixtures if they fail. You would have to replace the entire strip.

By: Marcelina

Marcelina — Wed, 05 Jan 2011 14:25:12 +0000

For commercial, industrial and retail applications. Our Tube Light Series are the most efficient luminaires we manufacture with luminaire efficacies of up to 120lm/W. Our tube lights utilise 0.06W high luminous flux SMD LEDs. The LED PCB has integrated thermal vias to increase heat dissipation from the LEDs to the Aluminium housing. Also the PCB interfaces with the AL housing via thermal transfer tape which provides greater heat dissipation and thermal management. Our tube lights come with moveable end caps to ensure correct directionality of light. The integrated LED driver can be fixed, removable or alternatively the tube may be supplied with an external LED driver/power source. Our LED tube lights have been designed to replace standard and high power fluorescent tube lights with up to 70% cost savings not including maintenance and replacement costs due to the extended lifetime of our LED luminaires (up to 50,000 hour lifetime).

By: Angus

Angus — Sun, 02 Jan 2011 16:01:41 +0000

This is excellent additional input. In the caribbean for example, some it can costupwards of 0.25cents per KWH.

By: P Moffatt

P Moffatt — Fri, 03 Dec 2010 15:53:43 +0000

a question: can the individual bulbs in a tube style LED be replaced when they do burn out? If so this would be a big cost savings over replacing the entire unit when a few tiny bulbs are out…..