Thank you both so much, It's nice to know I still have fans even after my mouth runneth over.
Well CC, The lights themselves where all purchased from a hobby store. They are 12 volt and come in various sizes and colours. They all come with two lead wires or pigtails is another term. The leads are about 8 inches long which make it convenient to wire a Lego Christmas tree or install in a store front or even in a light standard. The bulbs themselves don't create a lot of heat even after prolonged hours. As you can see from the last photo I actually put them in clear Lego pieces.
Also CC, I am looking for a topic I have here somewhere, still trying to find it, in the meantime, you might enjoy something even older
http://www.mlno.org/index.php/topic,3990.0.html