Your opinion, please. Does one of the two variations of this circuit offer a clear advantage, or is it a wash (see attached)? This indicator circuit turns on the LED below 11V (set by the zener). The LED cathode must be at ground (it is actually part of a tri-color LED with a common cathode), so it cannot be in the collector circuit of an NPN. Any suggestions on the transistor biasing? Thanks for your comments.