Quoted from ExtremePinball:The 12v power supply that I've been using for the last couple of years is eBay item number: 181719390201
Just select the type & quantity. I use the 12v/5A and purchase in quantities of 10.
This power supply will handle multiple 12v mods, so yes, you can hook up the 8 way splitter.
I don't operate 5v mods, so I haven't really researched it. Two options: Purchase a separate 5v power supply, and run off of that. Or purchase a standard arcade SMPS that has 5v & 12v, such as: eBay item number: 121795917592
I emailed Paul, the vender for eBay item #121795917592: New Arcade Power Supply 16A + 5v + 12v and -5v, inquiring about multiple 5v and12v leads from the unit for external TH 12v & 5v mods. From that unit, I plan to power an 8-way 5v/12v Pinballlife splitter board. I asked Paul is that's OK/safe. His response: "It depends on the amperage your mods pull but generally gi type led bulb is only going to pull maybe 40mA. 25 bulbs = 1 Amp. You should not have any problem at all running 8 different led mods. The thicker 18ga wire will also reduce resistance in the wire. The -5vdc site on the unit is usually only used on video games with separate sound boards."
It looks like the same goes for the eBay item # 181719390201, the 12v only power supply.
It looks like I'm good to go with my TH mods using an external power source without fear of voiding JJP's warranty!