Now I reduced the resistance for the 555 trigger and I still don't have a clock but I have one heck of a tracer light goin on..... pretty fun actually, my mother in law saw it and wants me to put led's in her Christmas picture using clear extra bright led's to simulate snow falling (or white led's if they make em ) how long would a new 9V battery last with a pulse every 1-2 seconds, I read somewhere a 9V battery has a 500ma hour rating so is it correct to say that the battery could output 500ma for one hour ? and just divide the ah rating by the led's ma rating ?