Our Hearth-block is finished! If you wish to learn about making a wonderful smouldering camp-fire, read all about it in our free tutorial here: http://www.nalladris.nl/workcampfire.htm
Our little bulbs are called Nal-LED's, because they are made on a base of LED light.
Please try them yourself to see how wonderful they are! Here you will find the turorial.
Our bulbs are fit for 4-12 Volt and are to combine with any dollhouse lighting system. It's just that Nal-LED's will not stop burning for a very, very long time (Usually in the days of your great-great-great-grandchildren)
There is no difference in plus and minus in a Nal-LED, and they do not need a resistance.