Re: How do LED 12V Dimmable light bulb works?

[nobody@xxxxxxxxxxxx (Dave Houston)]

LED lights have been too expensive for most people so there's a dearth of
meaningful HA experience to draw on. You might get better answers on
Smarhome's Forums.

     http://www.smarthome.com/forum/default.asp

"Josepi" <J.R.M.@xxxxxxxxxxxxxxx> wrote:

>Agreeing with Dave...too much money for that product. prices have just
>dropped huge in the last few weeks. return it and get yourself a 120Vac
>unit.
>
>You may have trouble making any series, trickle current controlled remote or
>dimmer unit work with this, though. This means having a neutral available in
>the switch box.
>
>LEDS get very hot and cannot handle their own wasted energy. Don't buy all
>the super efficiency BS. White LEDS are very slightly more efficient than
>other newer types and the light quality, from the units I have seen, sucks.
>The efficiency rating are typically raw LED chips and the ballast circuitry
>and lenses and casing has to be added. Single colour LEDs are most efficient
>but different colours do not add in intensity similar to lighting from both
>sides of an object do not make it brighter on either side.
>
>It would be doubtful that you can ever put these waveform chopping units in
>series with anything useful. Find something that uses the wiring neutral and
>does not depend on trickle current leaking through the bulb. It will never
>stop flashing until the ballast circuitry is burned out.
>
>BTW: 12Volt is a voltage and is never "consumed". That is analogous to water
>pressure in a hose. The pressure is never "consumed" . The water is
>consumed. In this case current drawn by the bulb and circuitry.
>-----------------
>
>"Dave Houston"  wrote in message news:4dad985f.38720234@xxxxxxxxxxxxxxxxxxxx
>
>I know of no way to use that with 120V nor does Insteon make a dimmer that
>works with 12V AFAIK.
>
>You would be better off with a 120V dimmable LED with a standard screw base.
>
>---------------
>"emoreno@xxxxxxxxx" <emoreno@xxxxxxxxx> wrote:
>
>>I bought the following LED dimmable light bulbs :
>>http://www.amazon.com/gp/product/B003SFBB4I
>>
>>However Iâ??m not sure how to make it work. Iâ??m sure that I canâ??t just
>>connect it directly to the power outlet as I can burn it, probably I
>>need some type of power adapter but Iâ??m not sure.
>>
>>I would like to use an INSTEON dimmer but I was wondering if anyone
>>has any experience doing this before and could share some thoghts with
>>me before I buy any dimmer.
>>
>> This is the first time that I see the MR16 power input (the two
>>pins), and I donâ??t know where to buy those either, or how to make
>>connect them on serial (or parallel) to control multiple light bulbs
>>from a single power source/dimmer.
>>
>>I noticed that this light bulb has some type of heat dissipation thing
>>attached to it; but I thought LEDs didnâ??t produce much heat, does
>>anyone know why these light bulbs have to manage heat when these
>>consume only 12V?
>>
>>If anyone could tell me what is what I need to buy and where to buy it
>>to have my setup working would be highly appreciated.
>>
>>Thanks