wierd LED

[Krash]

Antone hear of a aquare LED with a leg at each corner, 2 + and 2 -? They are
in a solar powered light, the kind that switches on at night.

 

[Watson A.Name - Watt Sun, Dark Remover]

Antone hear of a aquare LED with a leg at each corner, 2 + and 2 -? They are
in a solar powered light, the kind that switches on at night.

Might be a spider LED, one that puts out a bright light and has a high
dissipation, which is why the four leads. Try www.ledmuseum.org for a
lot more info on LEDs.


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[R.Lewis]

Antone hear of a aquare LED with a leg at each corner, 2 + and 2 -? They are
in a solar powered light, the kind that switches on at night.

There are a number - look at osram-sylvania and agilent for starters.

 

[Krash]

God, I can't spell worth a darn! sould have read Anyone, and square.

 

[Don Klipstein]

Might be a spider LED, one that puts out a bright light and has a high
dissipation, which is why the four leads. Try www.ledmuseum.org for a
lot more info on LEDs.

These are often referred to as superflux LEDs. By and large, these have
"regular size" dice (chips) but better heat dissipation than the usual 3
and 5 mm packages.
Maximum rated continuous current is typically 50 mA for blue, white, and
non-yellowish green, and 70 mA for yellow-green, yellow, orange, and red.
I believe this assumes that the leads are soldered into foil strips that
can carry away some heat. Like most LEDs, they usually cannot take full
power for long if you have a large, closely packed cluster of them.

- Don Klipstein ([email protected])