Robert Bruninga via EV wrote:
The resistor is far more reliable than the modern DC switching electronics
th ey put in consumer bulbs.
My LED bulbs throughout the house fail about one evey month or so (ouit of
50 and not a single one has been due to the LED, but due to the voltage
regulating electronics.
A series resistor is MUCH more reliable
I've had the same experience. Despite the marketing claims, my LED
lights only seem to last a few years. In every case, the LEDs themselves
are still good; it's the electronics that have failed.
I suppose they don't use a resistor because it would lower their
advertised efficiency. And, they get hot. If the LED light is installed
inside a fixture, that could be a problem.
Lee
--
All children are born engineers. Watch them at play. They're not
just playing; they're experimenting, building and learning. That's
engineering! Then we get them in school and squash it out of them.
(Geoffrey Orsak, Southern Methodist University dean of engineering)
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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