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GustavoWoltmann
Starting Member

USA
8 Posts

Posted - 02/03/2017 :  12:58:08 AM  Show Profile  Reply with Quote
I am going to use smart bulb. I am newbie. I am looking for help. Which one is the best energy saving bulb?

stusviews
Moderator

USA
15603 Posts

Posted - 02/03/2017 :  4:06:07 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
There are two, actually three concerns. The first is the amount of light you require, so look at the wattage equivalent, for example, are you replacing a 60 watt bulb or a 75 watt bulb. The second concern is the actual power used.

Finally, view the specified lifespan. Realize that this is only an estimate.

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lisawurtzbach
Starting Member

Australia
2 Posts

Posted - 04/07/2017 :  10:02:09 PM  Show Profile  Visit lisawurtzbach's Homepage  Reply with Quote
The best energy saving bulb can be the CFLs or compact fluorescent lamps and LED or light emitting dioes. You may notice that it is quite pricey compare to the traditional bulbs in the market but you can use it for the longest time plus it only uses less energy which means can save you money from electricity bill.
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Geo
Advanced Member

Canada
732 Posts

Posted - 04/15/2017 :  2:19:05 PM  Show Profile  Reply with Quote
LEDs and CFLs definitely decrease the energy usage. That's the good news. But there is bad news too. One, after 3 years of using LEDs I can state (based on statistical analysis per MIL-HDBK-217) that their life expectancy is not near the advertised 50,000 hours. Given the price of the lamps, how much does it really save to the user? The jury is still out on this. Second, manufacturing both LEDs and CFLs takes a lot of energy and material resources compared to a simple incandescent light. In addition, compared to the incandescent lights LEDs' and CFLs' power factor is miserable. So are we really any greener? You tell me. The true, independent data are next to impossible to find.
And finally, manufacturers have little incentive to make lights lasting almost forever because they would work themselves out of their business. Just as incandescent lights' life is artificially limited to about 2,000 hours (military light bulbs come at 50,000 hrs. rating but, obviously, at much higher price), the 50,000 hrs. LEDs' rating could be higher depending on their design. But then there would be almost no replacement market.
There are other benefits to LEDs; they are rugged, thus better for vehicles, save a lot in maintenance of public lighting, traffic lights, etc. Consequently the "best" very much depends on the intended use.

GJN
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stusviews
Moderator

USA
15603 Posts

Posted - 04/15/2017 :  2:55:22 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
Saving energy and saving money are not synonymous. Of course saving both is best. Energy Star rated products come close. The goal is to save energy--in the long run.

Some materials used are abundant, so those are not a problem. Money isn't the former, so it is the latter

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coolfinancer
Junior Member

Philippines
30 Posts

Posted - 04/18/2017 :  02:45:33 AM  Show Profile  Reply with Quote
LED seems to be the best choice in terms of energy efficiency.

coolfinancer
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Geo
Advanced Member

Canada
732 Posts

Posted - 04/18/2017 :  12:33:37 PM  Show Profile  Reply with Quote
Globally speaking, saving energy in one place if we waste it in another is pointless. Manufacturing takes energy, yet most products today cannot be repaired. Much energy rating improvement is achieved by overstressing products and thus greatly reducing their lives. Ecology?

GJN
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stusviews
Moderator

USA
15603 Posts

Posted - 04/18/2017 :  1:41:17 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
Too vague. Only specifics provide valid information. Unfortunately, getting details is elusive.

BTW, if the cost is more, even a lot more and the device uses both less energy and less limited resources, then the goal is met.

Stu's Views is Education and Fun. What do YOU want to VIEW today?
MathLandia High school mathematics learning fun.
Both Stu's Views and MathLandia are free websites that do not sell anything.
Saving energy is not always free. Be a world saver.

Please don't PM with questions that can be asked in a forum
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