On Feb 23, 2006, at 2:28 PM, Peter Todd wrote:

> Good point on the heat, didn't think of that one at all. LEDs
> are what, 10% or so efficient?

Hmm.  You'd think someone would be putting ultra-bright LED chips
in dot-matrix packages, give than they're used in high-visibility
signs and whatnot.  Those you ought to be able to get by driving
at 5mA average current or less...  It might be worth checking if
such displays are available elsewhere...

I've also seen dot-matrix displays in up to 16x16 LEDs, which would
make a 32 cube a bit easier...

BillW
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