I'm working on my strobe light bar project and I'm considering simplifying my setup by using a 5-way rotary appliance switch instead of multiple toggle switches. I found one on Amazon that looks promising, but I'm not entirely sure if it'll work. Just to recap, my light bar has different functions, each requiring a separate wire, along with power and ground connections. I'm also thinking about using two of these switches—one for selecting flash patterns and another for controlling scene lights, even though I may not use all the switch positions. Additionally, I found a power supply on Amazon; it seems more than adequate, but would it be a good choice? Thanks in advance for your help!
1 Answer
You should be careful with that 5-way switch. It doesn't have clear specifications, but it hints at handling up to 800W. If we consider it for a 120V AC setup, that translates to around 7A. However, since you're working with DC, you should really derate the switch. Just to make sure it fits your needs, what's the highest current draw your light bar requires? The linked power supply should work fine for your project, though!

The maximum current this light bar can draw is actually 12 amps, so just keep that in mind!