Bob Monaghan wrote:
...
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 ;-)

The camera phones aren't very sensitive. You gotta keep the cost down...

Using LEDs is a must, because there is no room for a proper flash. The
latest LEDs are actully pretty effective. Their main problem is the
(in)stability of their colour over their life time. But still, they are
meant to be used as fill flash only - just as the Wink-Lite.

-- Lassi