Comments on: LED lamp that runs on free (kinda) power

By: Fred

Fred — Sat, 07 Nov 2009 11:34:19 +0000

When you have no electricity, your DSL receiver is not going to work anyway, this little light may be helpful.

By: Andrew Baker

Andrew Baker — Fri, 06 Nov 2009 22:01:00 +0000

One drawback, is if your device cause noise, kiss any dsl service you have on the line goodbye. Any noise these devices use may degrade/drop your DSL internet circuit.

By: Jhon

Jhon — Fri, 06 Nov 2009 18:39:47 +0000

You can draw about 2ma — MAYBE 3ma off the phone line BEFORE the phone company thinks your phone is off the hook (and ring busy to the outside world). Knowing that, with a simple circuit, you can make your light.

The charger was a re-hashed solar battery charger (solar cells long busted). Powered that using the same circuit from above. Kept my alpha pager alive.

By: Julie

Julie — Fri, 06 Nov 2009 17:47:16 +0000

@Jhon Very Macgyver of you. I love it How hard is it to do?

By: Jhon

Jhon — Fri, 06 Nov 2009 17:32:41 +0000

I’ve built something like this before. Actually right after the 94 earthquake (lived in and still live in Northridge, CA) — small LED lights and a trickle charger for some nicads (pager). 4+ days without real power and one gets inventive.

You don’t have a lot of power on the line — and if you draw too much you’ll impair your phone service. The phone company usually isn’t to happy about stuff like this, either.

By: Julie

Julie — Fri, 06 Nov 2009 15:32:52 +0000

@Cobin I noticed that about the postage…

By: Cobin Rox

Cobin Rox — Fri, 06 Nov 2009 15:10:53 +0000

Now THAT is COOL!
Too bad they are all sold out.
And that the postage is more than the product. But it’s still cool.