OK Here's the link to a Current Regulating Diode. I order a 1 mA diode: what kind? Through the wall or whatever? Now how do I wire it to my 3 nine volt batteries: on the red side and that's it? Can I seal it in silicone to be waterproof or does it need to stay cool and breathe? I'm ready for CONSTANT CURRENT hold my hand this last little way.