<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Two questions. Firstly, how long can I expect two AA batteries to last when connected to a single LED (no other circuitry)? And will the color of the LED matter? Secondly, what the heck is a UM-2 battery? I have an old tape recorder that calls for four um-2's, they seem to be the same size as "C" cells, are they the same thing?<BR>
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-eric</FONT></HTML>