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Discussion in 'Energy & Fuel' started by Ted Richards, Oct 3, 2017.
Certainly not an "or what"!
The ballast traditionally was a big, heavy "transformer", almost, which lowered your 120 volt house supply down to only a very few volts, as a fluorescent tube once "fired" would be destroyed instantly by 120 volts.
Today, most ballasts operate electronically using solid state circuitry, are lightweight, and produce little heat of their own. It is not clear to me, yet, whether the LED "fluorescents" even need the ballast present. Depends on the engineering approach, and how they're doing it, I dunno. Since our 120 volts is alternating current, AC, a quick-acting light producer such as an LED will flicker on and off 60 times per second if fed AC. Not detectable by human eyes in case of the incandescent light bulb, which stays hot and glowing during the off times, nor the fluorescent tube which remains glowing during those off times.
LEDs remain one of the most efficient devices at producing light electrically. They are now being used to produce television picture screens even. The original means, cathode ray tubes (CRTs) are now dinosaurs, and move over, liquid crystal displays (LCDs) and Plasma screens. Only thing having a "tube" still, that I know of, are the X-ray tubes, and many may now be mostly metal. The original radar-tubes of WW-II were all-glass, but today's microwave "radar ovens" use metal tubes called Magnetrons.
A coincidence. The LED shop light bulbs I bought were GE T8/T12 universal bulbs, from Lowes. They have been out recently. Friday there was one two-pack on the shelf, but when I took it to the checkout, the lady said they had been recalled, and she couldn't ring them up.
"The pins on one end of the lamp can be energized during installation/removal, posing electric shock and electrocution hazards."
It wouldn't happen if you just turned the light off when you put them in, would it?
Doesn't scare me. They're already installed. Ha!
Mine, too @Nancy Hart . That should take care of that job for a while.
I don't know any of the technical stuff that some of you guys do, but I like what they're doing with LED bulbs these days. I have always hated the curly bulbs that they were pushing off on us a few years back, but LED bulbs always used to be far too dim for practical usage. Now, the LED bulbs are bright enough and they seem to last a long while.
So the Nannyites have again been busy here. Went yesterday to pick up some incandescent (or faux incandescent) 150 watt and 200 watt bulbs at Home Depot, and not one to be found. Talked to the manager. He said they "cleared the stock" last month, due to "complaints from the PC crowd", and will no longer sell them. Don't recall what sort of crapola they sell now, only that a 100 watt is the most available, and the package said that 100 watts is now equal to 1200 lumens...at least in Nannyite World. In the real world, a 100 watt incandescent is equal to 1600 lumens, not that it matters, since I need 150 watt/2250 lumens bulbs. Anyway, from Home depot my quest for the Holy Grail took me to Target, Best Buy, and as a last ditch, the supermarket....each and every one already hit by the PC putzes. Had to give up, go home, and do a phone blitz to find the two remaining sources in the Bay Area that are members of La Resistance. So looks like all my spare money this month is going into stockpiling lightbulbs. Who would of thunk it?
I absolutely fumed when Congress went in and attacked the lighting industry! First thing to go was Cool White fluorescents; the rationale I forget now. Incandescent light bulbs, ya gotta go to mercury-filled coils. After all, people (read that one morons) have been burned by hot incandescents! I hated the coiled bulbs for their unusually yellow, peculiar color output, until Lowe's started stocking 5000K, or essentially Daylight color output. We put them in our ceiling fan lights because of the nice white output.
Now of course, it's LEDs. No heat, no Mercury, but ya gotta have a whole BUNCH to get reasonable light output. My two new fluorescents, LED-type, in my shop, are the most-agreeable "fluorescent" type lamps I've ever had.
Given the government's supposed obsession with the environment, it is insane that they want us to use mercury-filled bulbs. As I mentioned in an earlier post, the technology in the LEDs has gotten a lot better but I would still rather have the incandescent bulbs.
My problem was and still is that the CFLs (or any fluorescent for that matter) don't work a -40. The LEDs I've tried are not much better, so it is old incandescents or halogens. We also use them as small heaters, so we don't want them to be super efficient for that purpose. I like LEDs inside the house, but not outside in winter when it is almost always dark.
I still use the old TNT light bulbs in my little apartment.
A couple of years ago the apartment complex where I live got a grant to replace all of the old bulbs on the property with spiral fluorescent style bulbs that were supposed to last for at least 10 years, they've all burned out and I've gradually gone back to my stash of old-style bulbs from the dollar store.
Don's mention of using the old style bulbs as heaters reminded me of using a mechanic's lead light with a 100W bulb as a heater under the hood of my car or under the kitchen sink during periods of extreme cold. The heat that they emitted was just enough to keep things from freezing up during subzero temps. The simple life, LOL!!!
The incandescent bulbs were good for chicken coops in the winter, too. That was all they needed as a heater.
@Beatrice Taylor "..... using a mechanic's lead light...."
I have numerous life-long scars, visible on my forearms mostly, from inadvertant contact with the metal "hood" reflector of my worklight, while working under vehicles, lying on my back. Some years back I found a suitable LED bulb for such use, and relish the fact that the drop-light works cold now. Occasionally, I will unthinkingly contact it, immediately drawing back expecting pain which does not present itself!
I can readily understand preference for incandescents in cold climates, however.
You can still buy them (or their nearest equivalent) online. Once I stock up (and buy out) the local source, I'll start hitting the online suppliers. I intend to stockpile enough to last five years, as the current crop of weak 100 watt crapola will not cut the mustard for my ole eyes.
Yep, Lowe's has been raided by the Nannyites too (https://www.lowes.com/pl/LED-light-bulbs-Light-bulbs-Lighting-ceiling-fans/4294801193), same worthless junk as HomeDepot. Strongest is 100 watt that ain't near a 100 watt. Definitely time to stockpile!