On Mon, 18 Jan 2010 23:24:03 -0800, RST Engineering
wrote:

On Wed, 13 Jan 2010 19:15:56 -0800, John Larkin
wrote:

Oh, for the love of Christ, can't you people learn how to SNIP????

Jim



With pairs of LEDs in series, efficiency becomes 6.8/14 = 48%.

A switching regulator can approach 100%, but is probably not worth the
hassle here.

John



We'll start a fund to buy you some scroll bars.

John