I want to see if they can be connected all 20 in series, if they can, do I need a 60 volt power supply?, and what size of resistor I need and if please can some one show me how to connect them. I know that I am going to buy special tiny wire. These lights at the present are all around my pergola in my garden. every time we go outside I have to turn the switch on 20 times and off 20 times. Please I'll appreciate if some one give me an idea in how to connect them all and place One switch near my door. I thank in advance the person that can help me with this project. Jesse