We are part of a three house light show on a cul de sac that has been building for several years. So we have lots of props and lots of controllers. We have been running by the seat of the pants as far as determining how many lights we can safely run from a single controller output. But this year, as we add more props, I want to take the guesswork out of this part of the setup. From picking up bits and pieces from various threads here, this is what it looks like I should be doing - just want to see if I have it right. If I run all of the lights on the output cable of a single output on white, I would measure the amps at the cable and be looking to stay safely under about 5 amps. To check the load on the power supplies, I would run all of the lights on white, measure at the DC output wires and try to keep the total load at less than 80% of the PS rating. If there are two sets of DC outputs on a PS, I assume I could measure the current on each pair and add the numbers. Does this sound right? Thanks for the input!
Steve