Wow guys - thanks for your input.
I am fast approaching the limit of my understanding on this...
The resistance is between 1.8 and 2.2 ohms (depending on wire length). I believe that 12V is the usual voltage.
I believe there is an inbuilt short test. Before connecting any ignighter you simply switch it onto test mode. I any LED's light up, you have a short. That's how the pro system does it. I would assume this is the same. Would this rule out the need for short circuit detection?? I have never seen a multimeter built into a firing system
DVM = digital voltometer?? Sorry - not sure if I understand.
Not sure if I am on the right track here, but would the idea of an electrolytic take some time to charge?? This might be a pain. If it's the only way, I'll take it though!
BTW, when the firework fires, the circuit is broken. The ignighters are basically a fuse, with black powder on them so when the current is sufficient, it goes bang. This usually takes a fraction of a second, so I don't think heating will be an issue.
I also plan to break the wiring sections into groups of 10 for ease of spacing, but also to limit heating. Does this sound fair???
Can someone give me part numbers for the components. I want to make sure I get the right stuff!!!
Once again guys, thanks for your help!! It is amazing!!