The Ultimate Solenoid Driver board is the second most important board in your Bally®/Stern® pinball game right after the Ultimate MPU board. This board generates the +5vdc and +180vdc voltage. These voltages are then distributed within your pinball game. This Solenoid board provides a clean and efficient power source that generates less heat for your machine. This is so important and will extend the life of your game! In this new design of the Solenoid board, included is a larger current capability with over/short circuit protections! And don’t forget other important features such as coil circuit protection, LED’s for all voltages and coils, and more new features to help your game run great.