is a rectifier, but it is only a 1/2 wave rectifier. Adding a full
wave rectifier, as others (and me too) have done, makes the string
brighter and eliminates much of the annoying blinking. Yes it still
blinks, but full wave rectification makes it a whole lot better.
The manufacturers could put an anti-parallel LED in the same package with the
same effect. The power dissipation is the same (application dependent) so the
package wouldn't need to be changed, just another junction on the same die.
Unlike CFLs, LEDs are *ALL* dimmable. You just have to have the right
dimmer. Since all lightbulb types require their own dimming technique,
it's a challenge to design one dimmer that would work for any type of
lightbulb a consumer can buy. Some are trying though, Lutron for example.
Check out these "C-L" dimmers they sell that are for both *dimmable* CFLs
Note that they are not intended for incandescent or halogen bulbs whereas
bulk of the dimmers in HD or Lowes today are the other way around.
I'm guessing if LED lighting is ever to prevail, there will be an
abundance of dimmers using PWM (Pulse-width modulation) that will work
with any LED lightbulbs, even the crude and unreliable ones you can buy
today. It's just the need to work with any lightbulb you can throw at them
that's holding the dimmer manufacturers back.
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