RussellMc wrote:
> The two responses also had no tag (easily missed that's it's missing*)

While it's understandable to not examine the tag when replying, it is very
easy to avoid this particular case by not subscribing to untagged posts.  I
don't know why the list server doesn't reject such posts outright.  That
would also prevent misguided do-gooders here from circumventing this built
in first pass intelligence test.

>> I like to decorate my home as well as
>> garden with LEDs :-) I guess I need not lees than 4000 LEDs to do
>> this.

Are you prepared for the cost?  For outdoor use you probably want one of th=
e
larger LED packages, like T1-3/4.  Have you looked up how much a whole reel=
s
of those cost?  How distributed do these need to be?  Do you expect to
control each LED individually?  Are the LEDs going to be arranged mostly in
grids, or each placed independently of others?

Have you even thought about the power requirements and distribution?  At
roughly 20mA x 2.2V =3D 44mW per LED, x 4000 =3D 176W, and that's just to t=
he
LEDs without any loss or overhead.  At the native LED voltage, that's 80A.


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