At 07:27 PM 12/19/2010, John Reynolds wrote:
>I was excited about the LED bulbs till I read this in the
>SuperBrightLEDS.com website.
>
>"Brightness of LED Car Bulbs
>LED bulbs are generally not as bright as standard incandescent
>bulbs, they have many advantages over filament bulbs (longer life,
>faster on/off times, lower power

Another thing to be aware of is light distribution and the size of
the light source vs how the reflector was designed.  Day before
yesterday I was behind a young feller with rear turn signals which
were very bright at 45 degrees off axis and practically invisible at
every other angle.  And reflectors/lenses designed for incandescent
bulbs generally expect something approximating a point source of
light radiating into most of a sphere.  "Bulbs" using numbers of
individual LEDs can't come even close to this.  Bulbs using
combinations of forward and aft facing Luxeons and similar might do
pretty well.  But I'd take a hard look at light distribution before I
decided that an LED lamp in a fixture intended for incandescents was
satisfactory.

Yours,
DAvid