Posted on 10/19/2023 4:08:51 PM PDT by george76
Back in 2015 I replaced every incandescent in my house with LEDs. First, I noticed a decent drop in my electric bills and I was able to customize every location with the color of light I liked.
Last week I had to replace a hallway light. The first one since the 2015 installation.
The nicest thing was our yard light. It uses three of the candelabra bulbs with the small base. I have had this house for 30 years now (bought it new) and those three bulbs would burn out in three months or so, the longest at four months.
I am an EE and have all the testing equipment and I checked everything I could think of in the circuit to no avail. Since I put three LED bulbs in that yard light in 2015 I have had to replace them once, in 2021. Six years instead of three or four months and I have much more light in my yard now.
Dow Chemical did almost the same thing with Freon.
There was really nothing wrong with R12/22 but the patents were going to run out so they gave several million dollars to greenie groups and congressmen and the whole CFC scare started. That gave them the room get R134/410 into place with their new patents.
Now the R134 patent is going dry I read Dow has paid Al Gore a substantial sum as well as a few million to at least two greenie groups to start the tilt at R134/410. They are already selling the new, terribly expensive, R1234YF and the car companies are already using it.
It has nothing to do with any science, it has everything to do with money for all parties involved.
If the new tech is super duper better than the old one, you will not need to make a mandate.
We do not have many people driving around in Model-T cars, just antique lovers...because mandates are not neccesary.
Ping for later.
From the article:
“The problem, as you know, is that frozen ice cream is better than room temperature ice cream soup.”
I beg to differ. Maybe I’m just weird like that, but truly frozen ice cream just tastes like plain ice to me. Melt it and I can taste it just fine.
me too! but I also have a stash of old bulbs, just in case lol
“most use a phosphor that emits over a broad color spectrum”
Thanks for that information. I wasn’t aware of the use of phosphors. From Wikipedia:
“White LED lamps consist of a blue or ultra-violet emitter with a phosphor coating that emits at longer wavelengths, giving a full spectrum of visible light.”
And another quote:
“Since LEDs have slightly different emission patterns, the color balance may change depending on the angle of view, even if the RGB sources are in a single package, so RGB diodes are seldom used to produce white lighting.”
I still wonder whether a color TV actually produces all possible colors. It must have something to do with what our eyes are capable of seeing.
Yup...but government regulators are idiots.
Eight years in my current home and only one bad LED bulb. I particularly like the ones that replaced the fluorescent tubes in my garage and bathrooms. For me, the “color” factor is a non starter. My only complaint is they don’t work as well with dimmers.
Dow Chemical had nothing to do with Freon (Dow and Dupont had not yet merged at the time)...that was all Dupont. I worked for Dow in those days.
Every lightbulb in my house is LED and that allows my farmhouse to be off grid; but, that's my business, not the government's.
You are right about the lightbulbs designed for 1000, but that is a trade off between longevity and brightness
https://www.youtube.com/watch?v=zb7Bs98KmnY
This guy on YouTube makes videos about common things and goes into more detail than you would ever want to know. It turns out that there is a good reason why light bulbs are designed to only last 1000 hours.
“Sorry, George76, but this article is the biggest pile of bullshit I have ever seen posted on FR.”
The color of the light is annoying if you have 2 lamps in the same room with different color (one very white, the other more yellowish which is what incandescent bulbs put out). But if you buy the same bulbs it doesn’t bother me that LEDs are less yellow. And I have only changed 1 bulb in the last 6 months out of probably 50.
We did. Mom and Pop joint. Good people. The new cylinders... 10 years. That’s it.
The LED wafer lamps I just purchased for a drop ceiling offer me 4-5 choices to "select" Kelvin...incandescent lights don't offer that flexibility.
You understand nothing of economics, in that case. Hard science is purely objective, physical measurements. Economics is social, not physical science, and depends on the personal preferences of the consumer to determine value and efficiency.
The argument here is let the market decide. Not an engineering argument.
Yeah, you gotta be careful to select the right "color temperature". I prefer the "cool white" (color temperature 5000K), but you can get pretty much any color temperature you want. LEDs are incredibly versatile. I used to design chemical instrumentation, some based on spectroscopy. LEDs are about the perfect spectroscopic sources.
Personal preferences are an input to value determination. Period. There are other measures of value e.g. kilowatt-hours of electricity produced vs capital costs, labor costs and commodity (fuel) costs. Efficiency is an easily measured quantity - cost of factors that go into making something. Productive utility vs cost is another determiner of value, e.g. This plant can make steel at x$ per ton and that plant can make steel at y$ per ton.
Some economics is human caprice - color and styles of next Spring's fashions. Much is much more rational.
My cost of electricty for heating, colling and lighting is an objective number. Whether you care to spend a lot more for running an incandescent bulb and the derrivative cooling costs of your house rather than equivalent or even better lighting from an LED bulb is your individual caprice, but the decision is not without objective economic consquences like say paying for the cost of your caprice by drinking cheap gin rather than single malt.
Individual caprice. as you call it, is key to economics. It’s called choice and preference. IT DETERMINES VALUE. If noone ever wanted an led bulb for example, the value is ZERO. Doesn’t matter how efficient it is electrically, doesn’t matter what production factors and costs are, none of it matters until the consumer agrees to pay and considers it worth buying.
That’s the bottom line. To those persons the efficiency of the bulb is ZERO and its value is ZERO. Its efficiency and effectiveness, you guessed it, zero! To those consumers. To others, and to manufacturers, quite different values exist. This is a value question, not an engineering one.
You’re an engineer. Like most, plus computer professionals, you are kind of autistic. Your ability to grasp human motivation and psychology is weak at best, so you cannot and will not see what I’m saying. That’s ok, we need engineering nerds. We just don’t need them in charge of businesses or society.
This is coming from a Randian who believes in supreme objectivity. Human needs and preferences vary. Autists in charge leads to things like Bill Gates wanting to cut off human populations from food sources. You think “efficient” but you cut off that concept from human needs and wants.
They are frosted, as were the LEDs. 40 Watts are the OG’s, the LEDs were 25.
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