Honest opinions about how to buy Appliances and Lighting.

Friday, May 22, 2009

LED Vs Incandescent

We have bulbs with similar characteristics. One bulb is $50. The other is $5. Which would would you choose?

Before you answer, the $5 bulb uses $1.46 per month and the $50 uses only $.20 Further, the $5 bulb needs to be replaced every 7 months versus 20 years for the $50.
Also, the $5 heats to 300 degrees versus 0 for the $ 50, so there is some impact to your HVAC system.

We are really comparing the 7 watt LED versus the 50 watt low voltage MR16. At a $23 yearly savings in energy and replacement, The LED becomes a better value in less than two and a half years.


  1. Haha, funny that you ask. I just bought a spotlight for GU10 in order to compare a 35W halogen spot with a 7W LED spot.

    Despite the LED being warm-white (well, sort of), having decent colour rendering (sort of) and being just as bright as the halogen, I found the light much too flourescent-looking (pinkish, sterile and dead) for my personal taste.

    Whereas the halogen spot gave a truly excellent light; warmish but still bright and crisp with perfect colour rendering, casting a sunny glow in my kitchen and making colours vibrate.

    So, no doubt I'd buy the halogen lamp even if it costs slightly more in electricity over time. It will probably last over a decade as I only turn it on when I need to see what's in my freezer.

    That's how I save and make my lamps last 'forever': I only turn lighs on where I need it.

  2. LED relies on light passing through a semiconductor. In my experience, the only company rendering a true white is Cree.

    AS I said in the seminar, the other companies render inconsistently

    BTW, "slightly" is not exactly accurate to describe the difference between LED and incandescent(halogen is incandescent). Difference in $ per hour for 75 watts...about $2

  3. Anonymous12:19 PM

    One of the box stores also sells a CFL version of this bulb for around $8. I'm not sure of the difference between the LED and CFL version in terms of heat and energy savings but it might be a good happy medium. Here's a link to a description of the bulb. http://www.goodmart.com/products/1182651.htm