In past years we all heard that efficient solid-state LEDs would allow to decrease the need for new power plants.
In paper published Thursday in the Journal of Physics D, researchers from Sandia National Laboratories argue cheap efficient lighting can increase consumption.
"Presented with the availability of cheaper light, humans may use more of it, as has happened over recent centuries with remarkable consistency following other lighting innovations," said Sandia lead researcher Jeff Tsao.
Comment: America is bathing in cheap electricity, compared to many European countries. To prevent excessive light usage energy tariffs should be increased gradually. It will make migration to energy efficient appliances faster and economically reasonable. It's still hard to convince consumers to buy expensive LED lighting in order to save $10 on electricity bill.
What do you think?
at the current rate of 11 cents per kWh - there are many who pay substanially more ie Hawaii's rate
is 26 cents per kWh, thats not cheap electricty. Lots of other states rates are in the upper teens!
The last point made speaks of saving $10 monthly - my Comed bills have been reduced from about
$78. monthly for 4 -- down to an ave of $36./monthly .I have shaved our families kWh consumption
from 500 down to 220 range - October use of 130 kwhs resulted in a $22.00 bill .
You can minimize your kWh use by using Quality Leds - I know it for a fact because I have done it,
Your estimate is just Not accurate - Unless there are only 4 or 5 lights at your place !
Multiple Cups/Chip on Board ( MCOB ) LED Lighting technology
As we know, most of COB encapsulation technologies, including the one of Japan, are based on the encapsulation of the aluminum base, which assemble some chips to be encapsulated on the aluminum base. This is what we call the COB technology. The substrate of the aluminum is copper foil, which can only well conduct electric but it can't process optical processing very well.
led lightingMCOB LED Light technology, quite distinct from the traditional technology
•puts the chips in the optical cups according to optics.
•It aims to make not only one cup, but many cups. It derives from a simple principle,
•i.e., the light of LED is from the chip itself, which means we need many angles to let out more light.
•The light efficacy can be improved if we have more light exits. In any cases, the light efficacy of low poweres chips can be at least 15% higher than high poweres chips.
•The reason is that the chips of high power are bigger and they only have four light exits.
•However, we can have as many as sixteen small chips on a board and 4*16 light exits.
For this reason
MCOB is not only a cup, the purpose of many cups in MCOB is higher light efficacy.
Just because of many cups, comparing with the ordinary COB tech, products adopting MCOB tech have much higher light efficacy.