Showing posts with label LED Bulb. Show all posts
Showing posts with label LED Bulb. Show all posts

Thursday, January 23, 2025

LEDs. Were We Lied To?

 Many years ago, 10 actually from the writing of this post, I wrote a brief on the cost of LED vs Incandescent Light Bulbs. The odd thing is that LEDs have not been lasting the 25k hours. In fact, some have lasted less than even the Incandescent counterparts.  Energy costs haven't gone anywhere either, in fact, they've increased. Even using LED bulbs, swapping everything to LED, changing to Energy Efficient fixtures, etc. It hasn't really made much of a change in energy costs, and many times it has increased. Especially with the added cost of these being more expensive products overall.

Which begs the question.

Were we lied to?

The short answer is. Yes. Obviously.

But it's a lot deeper than that. They (Energy Minister) suggests that it's the "aging" infrastructure that is to blame, which is adding costs, such as the "delivery" charge, which is what is the portion that is supposed to go towards upkeep, maintenance, and upgrades of the electrical infrastructure. 
And does it? Hard to say, especially when you consider that many times the CEO of these Power Generation companies are making multi-millions, but that's a topic for another discussion.
I find it hard to believe that it's aging infrastructure, more than it's buying into technologies

that are not really all that they've cracked up to be. 
Wind Turbines are great, for the average person to have one, as a sole means of backup energy capture (Electricity Production), so they can power things off grid, reducing their overall cost on Electricity, but as a means of power production for a large mass of people, it's silly.  You're taking a backup means of generation, and attempting to make it the primary means, that's just asking for trouble. Same with Solar. The sun does not always shine, and the wind does not always blow, therefore they should never be considered as main power generation systems. Why would they be? That's basically the same idea of putting the horse behind the carriage. 
It works great on a Porsche, having the engine in the rear, but doesn't help when the horse cannot see where they're going.
And honestly, they're not even really backup power, as they're more along the lines of ... Supplemental Power Generation. Sort of like having batteries in a car. It sounds like a good idea, until it's put into actual practice. Then it makes no sense at all.
Batteries are great as a method of storing generated power when there's low usage, and returning it back to handle any spikes, helping the grid cope when it needs to ramp up power generation. Batteries are also great in small handheld devices, like cell phones, cordless drills, impact drivers, and laptop computers. They also make sense to help clean up DC power production, as you can use a AC/DC inverter, run it thru a battery to help clean the voltage into a steady, true DC voltage, and run DC loads off it, such as electronics, without damaging interference.

If you consider how an AC Sine Wave works, you have a "Positive" voltage, followed by a "Negative" voltage, 60 times a second (or 50 in other parts of the world). This cannot work as a DC voltage, as DC requires constant, direct voltage, in one direction, no spikes, no dips, or you get interference, or outright damage to the electronic components. 
Consider your car, for instance. You have an Alternator, which is a generator, and it recharges the battery. However, it being an alternator, creates an 'alternating' voltage/current, meaning it's creating AC electricity.  By running it thru a couple gates, and capacitors, and you get a DC voltage, however it is not a constant DC voltage, so by running it thru a battery, it's able to remove the voltage sags, and give constant DC voltage.

We're being told this is all for "Green" Net-ZERO, and that it's for the planet, with CO2 reduction in mind. How much CO2 are we reducing? 0.04% of our atmosphere is CO2.. 100 Million years ago there were 5x to 10x the concentration of CO2 in the air, the planet was a lot warmer, meaning there were no polar ice caps, and the largest, most successful animals, existed, and walked the Earth. 
The land was fertile from pole to pole due to the temperature, and CO2 content in the air.
Us paying more, many having to decide whether to buy groceries, or pay rent, feeling like they're in over their heads more, never able to get ahead at all, is not going to reduce any kind of CO2 footprint.

A Conflict of interest?

No, I was a pretty early adopter of Electric Battery powered equipment, such as an E-Bike in 2014, and then we got a Battery Operated Snowblower in 2015, followed by a Battery Powered Lawnmower in 2017, alongside a battery powered weed trimmer, so I have done the whole battery crap already.  The one thing that I think works well as a battery operated tool, is the weed trimmer. It has plenty of power, less vibration, and is overall lighter than a gas powered trimmer.  But, I find that the trimmer line is less robust, as it's often a thinner gauge than on their gas powered counterparts, plus the battery will not last anywhere close to what a gas engine will, when maintained. 

What was your experience with the Battery Powered Lawnmower?

Honestly, I enjoyed using it. I found it to be a great little unit when using it for a small lawn.  My original reason for getting a battery operated lawnmower was because, 1. it was easier to operate for my wife, who enjoyed cutting the lawn, as she enjoyed the sunshine, and 2. The gasoline powered mower I was using, failed. The person I took it to that said he could fix it, simply couldn't. I figured if he couldn't fix it, then who the heck else could? It was before I had started to learn and take an interest in small engines. It was definitely easier to start, tho.

But that's when I started to find the problems with my mower. It wasn't a Greenworks lawnmower, it was a SunJoe, however insert whatever brand you want, and
you'll get a similar result. The body was made of plastic, certain questionable parts were made out of plastic, and many times they were non-serviceable parts.
The blade adapter on the SunJoe mower was entirely non-serviceable, and if it broke, the entire lawnmower is now junk.
The first issue I had, was the body flexed. It surprised me when I saw it the first time. I was mowing along my fence line, and pushed a bit against the fence, which caused the body to flex. That's when I heard the sound of a quickly spinning blade coming into contact with the body of the mower. That surprised me. I shut it off, and inspected the damage. I found a few chunks missing on the underside of the deck, which you can see in this video.
Next was the tiny bagger on it.  It would fill quite quickly, and when that would happen the motor would easily bog down on even slightly tall grass, which no gas mower would even falter. This is where the second issue is that I had with it. Completely lack of power. It would bog down in grass that may have been ignored for a week or two extra, often causing the overload to cut it out of action. How ridiculous is that? 
The benefit that I found, being lightweight enough that my wife used to be the one who enjoyed mowing the lawn, to her complaining it would cut out when she went over slightly longer grass.  She used to use our old Gasoline powered mower, and never had it bog down once going over any grass.

Now EGO is another lawnmower brand out there making grand promises, such as "The First Lawnmower to be as powerful as a gasoline mower!"

Yeah, I could see that, if it has a powerful enough motor, but then will need the battery to match, which can be quite expensive.  And this is where the EGO mower starts to fall flat. Sure, they are powerful, but the batteries are questionable. With batteries actually being the weakest point of these lawnmowers, which begs the question. How green could these mowers actually be? 
Many lawnmowers I come across to repair are in the range of 10-20 years old, with some being older than 40 years old.  The minor little repairs I do, and they're good for another half dozen, or more, seasons, especially if they're maintained.  
Most Battery operated lawnmower batteries often cost several hundred dollars to replace, which can easily be more than the break point on even replacing the battery, which is often what a lot of people do. They sell the mower, as is, without the battery, having bought a new mower with a battery.

How is that environmental? When I find a non-running gasoline powered mower, it's simple to get going, and will often cost someone less than a 1/3rd of a replacement battery.

What other considerations do you have about battery operated equipment?

Battery operated equipment isn't terrible, honestly. For the average person, with the average lawn, they're okay to have.   There is a risk of fire, especially on the cheaper batteries, considering they'll be built to a lower price point.
This should be avoided, but as I said before about rising prices, people will choose the option that doesn't hit the pocket book as much.

What about used battery powered equipment?

I would have to say that Used Battery equipment is a gamble. You often cannot really test the life of the battery, until it's too late. Many times Lithium batteries will work, until they don't, and when they no longer hold a charge, it's quite sudden.
Or the battery could last several years, but then you're still stuck in the same boat. The battery replacement, if it's still available, will be more costly than just buying a new unit, that has more options.
Sound familiar with EV cars?

What is the difference, then, with gasoline powered equipment?

This is where it's interesting. Many of the older parts are actually readily available, as the design sometimes simply hasn't changed. The Briggs Flathead 3hp engine has been basically the same design for, gotta be going on 50 years. It's a solid engine, and well designed,
 however it's no longer manufactured, as they've moved onto OHV engines, due to emissions standards.
Often gasoline powered equipment can easily be repaired, unless there has been catastrophic failure. However the parts could easily be used on a similar model that may need less work to get going again.

Considering all this, what would you suggest?

Honestly, it's hard to say. LEDs are definitely going to be less expensive to operate than their INCANDESCENT counterparts, just on energy consumption alone, and they've become so inexpensive that they're often sold in small packs at the dollar store.
So thru consumerism, they are often less expensive overall, although the bulbs are now filling up the landfills as well, as it's often the drivers that fail on the bulbs, due to inadequate ventilation.
However with gasoline powered equipment, vs battery powered. I would say that older gasoline powered equipment will easily outlast any modern battery operated equipment, hands down, and does not even come close to posing the same fire risk. Sure, gasoline is flammable, but can easily be extinguished, and contained. Lithium Ion fires easily burn far out of control quicker, and more aggressively, with much hotter temperatures.
I would steer clear of buying new in general, and definitely avoid buying battery operated equipment used.  older, well maintained gasoline engines will last a very long time, as they are very simple machines overall.

Moving forward, I can see battery powered lawn equipment becoming more prevalent, with gasoline equipment seeing a drop, for a bit, then a surge as people find the replacement of a battery just isn't worth the cost.

Until next time...

Chat soon

Thursday, February 26, 2015

The True Cost of Incandescent VS LED

Ever wondered if it is truly cheaper to go LED over Incandescent bulbs?
Lets do a little bit of everyone's favorite subject...
MATH.

The average Incandescent light bulb will usually last around 5000 hours on average (yes some last a bit longer and many last far less)..

So to get what one 60W light bulb costs we take 1000 watts and divide it by 60 to get how many hours it takes for this bulb to reach 1 KW/h.

1000/60 is 16.6 (so lets say 17 for argument's sake)
This means that it takes about 17 hours of burn time for 1 KW/h for a 60W light bulb.

So now we'll take 5000/17 to get the total amount of KW/hs for the life of this bulb..

That's 294 KW/hs...

Average cost is about $0.115 per KW/h..

That works out to be... $34.00 over the life of the bulb.

Now add about $1.00 for the cost of that bulb and you have $35.00 for the entire cost of the life of the bulb.  That 60W light bulb has now cost you $35.00 over the span of 5000 hours.

 I know what you're asking'

Aren't LED bulbs really expensive?

Well, initially they seem to be a little on the high side, I agree.  I mean, $10.00/bulb over the cost of $4.00 for a 4 pack of Incandescents..

Except that's not exactly true.  That $10.00 bulb will last 5x longer than the average Incandescent bulb.
Lets do the exact same math to find out what that bulb will cost over its life.

So we'll take 1000/10 = 100...
Already it's looking better.  This bulb takes 100 hours of burn time to burn through 1 KW/h..

Alright, and the average lifespan of these bulbs is around 25000 hours, which is 5 times the average lifespan of a typical Incandescent bulb.

Okay, so we take that 25000 hour life and divide it by 100.  That's 250 KW/hs over its lifespan.
Over that time at $0.115KW/h it'll cost about $29.00 to run that light.
I know what you're saying...

That's a total of $39.00 for the total cost of the bulb!!!!

Okay, sure, but lets look at it this way.. Divide that $39.00 by 5. Why?  Simple, the bulb lasted 5x longer than the incandescent.  So in 5000 hours the total cost of operating that bulb has now been about $8.00 including the cost of the bulb considering you are now having to shell out to replace that 60W light bulb that just burned out..

So take a look at that light fixture hanging over your dining room table with 5 or 6 60W light bulbs in it.  Yes, it looks lovely!  But imagine in 5000 hours that fixture has just cost you $170!

Change those to LED and in 5000 it'll cost you $40.00..
That's a saving of $130!  How many other light bulbs do you have in your house?

It's pretty incredible that a LED bulb can really save you that much money in the long run.  Don't forget that if you want to save money you might have to dole out a bit of cash from the start.

The basic rules for shopping for LED bulbs is this;

Highest amount of Lumens
Lowest amount of watts.

The higher the LUMEN count on the lower the wattage the better the saving in your pocket!
Lumens is the measurement of light.  The average 60W incandescent light bulb gives off approximately 800 Lumens.   So to make a direct replacement of a 60W incandescent for a LED bulb, find one that gives off between 750 and 900 lumens.  Also try to find a bulb that is no higher than 11W.  11W for a LED as a 60W incandescent replacement is a little high, considering you can easily find ones that are 8-10 watts giving out 800+ lumens.

The other key is colour temperature.  Measured in degrees Kelvin, a incandescent bulb is around 2700K.

2700K is a very very warm colour, in the yellow/orange light spectrum, but is the colour we all associate with... home..

3000K is a bit whiter, and similar to the colour of Halogen lamps.

4000K is a lot whiter and similar to offices and schools

5000K is classified as Natural Sunshine.  Light that is streaming in through a window is around 5000K and is a very beautiful colour when used in the right context.  However it is very white, and you will most likely not want this in a bedroom, dining room or living room.  They are good for a kitchen or a bathroom, but the colour can feel a bit harsh.

6500K is classified as DAYLIGHT.  If you are standing in the sun when it is at its zenith you are at 6500K colour temperature, which is into the blue-side of the colour spectrum.  I have not seen a single LED bulb at this colour for sale that wasn't a specialty bulb, but I thought I'd at least mention the colour.

So there you have it.  It may seem like you're dishing out a bit of money at the start for LEDs but for that money you put out initially, you are saving in the long run!

Yes my entire house (save for about 5 fixtures) is LED.  The 5 other fixtures are.. 1 Incandescent and 4 fluorescent 4' T8 tubes.  The fluorescent tubes will soon be replaced with LED tubes instead....

Until next time....