Hi, I'm a newbie on this site and am working on a 12v garden lighting project. I will have 12v led lights along a path with a PIR sensor at each end of the path. Either of the PIR sensors will trigger the lights via a 12v relay. The PIR sensors will not be on the light circuit but on their own circuit. The question I have is what 12v DC transformer/driver spec should I buy to power just the pir's and the relay? The pir's will be approximately 30m apart and will have a very low load themselves (I can't find detailed specs for them unfortunately). I am planning to install 2.5mm2 conductor cable to help with the possible voltage drop over this distance. I hope this is clear, many thanks for any suggestions!