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.
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|
|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**|
*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.
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.