Hello, I am making a light installation of 1000 leds in a grid 20x50 leds. I want to connect 20 leds in a series and then connect each series in parallel (50 lines in total). Each led is about 3.1V 20mA. Can anyone help me with what adapter I would use to power this? (I have a regular EU plug 230V 16A). And do I need to put resistors? And where? Final question, because of the design restrictions I can fit max of 24awg cables in the series part of the installation, but I can put any size of a cable between the lines - for the parallel connection. What size of a cable would I use? I hope someone finds this possible and challenging enough to help me out.