On/off sensor LEDs could save BIG energy (and GHG), light up walmart for BIG cost savings, and be mass produced by the Chinese/american combine to bring the cost down to consumers.
http://thefraserdomain.typepad.com/energy/2007/02/led_lights_save.html#comment-74614342
Yep that on/off sensor feature is great! Automatic light on/off would allow most lighting to operate on solar power alone.
Flourescents take extra power in the turn on phase negating the possibility of saving energy with very frequent on/off cycling. LEDs do not have that problem.
Imagine you office or home lights, or even lights at a huge store or factory that is open 24 hours only turning on to illuminate the room or area with a human eye in need of light. That would be a huge energy savings.
The lights at big box stores on/off sensor LEDs on the shelf, instead of giant bulbs glaring down 24/7 from the cavernous ceilings. pretty signifigant savings for the Walmarts of this world. And GHG savings for the climate.
Another thought. walmart, the newly green conscious Walmart, is the main sales push behind compact flourescents. Could they do the same for human proximity sensing auto on/off LEDs? Make them plugin to wall sockets or existing lamp fixtures.
Use them in their own stores on their shelves and mass produce them to bring the cost down to consumers? And make a few more billion doing it? Yep.
Call me walmart if you need a consultant on this, and solar panels and batteries and utility net metering inverters and small wind systems that mount on roofs and telephone poles and electric cars and bikes and motorcycles with small backup generators... I work from home or wifi! hehehey.