Depending on how you want control the lights will be a factor in the method you use
I went with the relay board so I could control the lights with a remote.
If you just use a 4.5vdc adapter you will have to use the figures switches or plug and unplug the power supply
You can also get the relay boards with more then 4 relays, currently the largest board has 16 channels and now they even come with built in wi-fi and smart phone control
I went with the relay board so I could control the lights with a remote.
If you just use a 4.5vdc adapter you will have to use the figures switches or plug and unplug the power supply
You can also get the relay boards with more then 4 relays, currently the largest board has 16 channels and now they even come with built in wi-fi and smart phone control