paul wheaton wrote:
So I am going to say that both bulbs will last 10,000 hours and electricity is a dime per kilowatt. 100 watts for 10,000 hours is 1000 kwh. $100.10 worth of electricity for the incandescent and $35 for the LED. A strong win for the LED.
Jarret Hynd wrote:
The only things I don't like about LEDs in consideration to permaculture are their complexity, and I'm not sure if they'll get any simpler to manufacture/assemble in the future.
Mike Phillipps wrote:...
I think Paul makes a good argument for the effective use of "waste heat". ... And unfortunately that argument for justifying incandescents is diminished.
Peter VanDerWal wrote:Both of these provide far more heat per watt of electricity than a lightbulb does.
Mike Barkley wrote: Simplest method doesn't even need wire except enough to connect a few broken pieces of solar cells together with a enough extra to connect to a AA or AAA battery. <<always use a diode to protect your solar cells because humans are LOUSY charge controllers>> Charge a few AAA batteries to operate a flashlight. Or one of those stick on under the pantry shelf lights, etc. A bit simplistic but it's effective light. Wireless wiring.