Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com> It was a giant super bright red LED. Any other would work just as well. Not sure I would use the white phosphore ones just yet... Cheers, Terry At 08:06 PM 2/24/2004, you wrote: >Terry: > >Is that RS part number for a red LED or white LED? > >Dr. Resonance