Lower Your Electric Bill with LED Light Bulbs

LED Light Bulbs

The incandescent light bulb has been the main stay of residential lighting since Edison got things going over a hundred years ago and is fairly inexpensive at around $1 plus or minus 20 cent or so. More recently we have seen Compact Florescent (CFL) and now Light Emitting Diode (LED) light bulbs.

As with any new technology prices start high and over time come down and CFL and LED light bulbs are no exceptions. CFL came out first so it is the cheaper of the two and really LED light bulbs are still maturing.

Philips 100W LED light bulb

Philips 100W LED light bulb

LEDs as an electronic component have been around for a while, first becoming practical in 1962 but did not have much power out (luminosity). While LEDs were steadily increased there luminosity since then it has only been in the last several years that they have produced enough light to be practical and cost effective to make light bulbs out of and even then it was only 2015 that I saw prices get low enough that I bought one.   The first one a purchased was the Philips 100W equivalent Daylight A19 LED Light Bulb for about $9.95.  I just checked and current price is $7.97 and the soft whites are a dollar less.


LED Light Bulbs – Cost Analysis.

I am going to show you why LED light bulbs are a better deal than even the newer efficiency incandescent light bulbs.

Here I am comparing the old standard incandescent 100w light bulb with the new efficiency incandescent light bulb, the CFL light bulb and the new LED light bulb:

Standard incandescent Efficiency incandescent CFL Light bulbs LED light bulbs
Power used 100W 72W 23w 14.5w
life 1 year life 1 year life 9 year life 9 year life
Light output 1500 lumens 1500 lumens 1500 lumens 1500 lumens
Cost to purchase $1 $1.50 $3 $7
Cost of power for a year $16.42* $11.83* $3.78* $2.38*
First year cost $17.42 $13.33 $6.78 $9.38
Life time cost $17.42 $13.33 $37.02** $28.42**
Annualized cost $17.42 $13.33 $4.11 $3.16

*Cost per year based on 15 cent per Kwh x 3 hours a day x 365 day per year x power used (1 Kwh =1).

** Note 9 year life.

Test of LED Light bulb CFL Light Bulb and Incandescent Light Bulb

Side by side comparison of of LED Light bulb CFL Light bulb and Incandescent Light Bulb

Cost numbers are approximate because the cost of power varies and the cost of CFL and LED light bulbs continues to drop and varies depending on where you buy and if you get Day Light or Soft White. You will notice that either CFL or LED light bulbs pay for themselves in less than a year compared to Standard or Efficiency incandescent light bulbs.  In fact the CFL is ahead of LED for the first 3 years or so but then LED blub is the winner in the end.  Also CFL can be dangerous if you break them because they contain Mercury vapor which is a neurotoxin.

Here is a video Review: Philips LED Light Bulb 100w

LED Light Bulbs – Where to purchase

So where can you get them and which brand are best?   I like Philips because they are less expensive than Cree which used to be the primary manufacture of LED light bulbs.  Go to the What You Need page for a full list of where and what to buy.

Let me know what you think


  1. Congratulations for the article is very useful and everyone should know this information, thanks for share. This information should be basic but I can see that is not, we can live all our life’s without know what we have up on the roof, so that make it even more interesting. I would like to know if you recommend some light specific? I mean which one is the best for a study room? light is fundamental. Thanks

    • Thank you Alfred. I like the Philips because they are a known name and they are cheaper than Cree though Cree’s price seem to have come down recently. There is also EcoSmart but I have not researched them yet. For a study it depends on the lighting effect you are wanting. Unlike Incandescent which are about 2700K with some modification depending the bulbs coating LED bulbs comes in 2700K (soft white) and 5000K (day light). So the LED soft white is about the same as incandescent where as the day light is whiter and actually make the room seem brighter with the same amount of like.

  2. My monthly electric bill is normally quite high, but then again, I am using normal light bulbs. I’m still living like it’s the 80’s. HA HA!

    I keep meaning to switch to LED light bulbs because my family and friends say they are great for saving energy and driving down energy bills a little.

    LED sure seems like a great option, especially when the prices of the bulbs are dropping. That’ll be even more savings in my pocket 😉


Leave a Reply

Your email address will not be published. Required fields are marked *