probably not. After all, a 12v car interior light is only so bright when
on continuously, and has to be heated to high temp to give off much light,
so "strobing" them on/off wouldn't do much for either brightness or
longevity. The LEDs can be strobed on/off fast, and get some benefits from
peak vs. average power dissipation issues, but again, LEDs are pricey and
don't put out all that much light either.

My typical homebrew underwater photo strobe tube uses a 200 watt-second
energy equiv. light pulse (in a microsecond); to equal it in brightness,
you would need to dump the equiv. of 200 watts for one second thru
whatever bulb or LED you want to use. And those multiple flashes would
have to add up to 200 watt-seconds even if the actual open shutter time is
1/250th second etc., so actual equivalent continuous power dissipation
would be enormous ;-)

But there aren't any 200 watt 12 volt car interior night lights, let alone
200 watt dissipation LEDs for low cost, and a hundred LEDs add up in cost
fast ;-) So we can be pretty sure that these LED cellphone lights are
going to be for sensitive detectors (1 candela?) and not for far distances
or very frequent use (unless you have a car battery in your backpack ;-)

That's why strobe tubes are still used in the 35mm repeated flash strobes,
but for much less peak power ;-( The cost of tubes that can sustain high
power flashes repeated in a short period of time is very high, and the
power supplies aren't portable either ;-)

grins bobm
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* Robert Monaghan POB 752182 Southern Methodist Univ. Dallas Tx 75275 *
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