This is a new redesigned plug and play replacement for pop bumper driver boards found on Gottlieb System 80, 80A, and 80B games. Works with 24v and 38v coils. This board includes a test button and indicator LEDs which light up showing +5v (red), +24v/+38v (yellow), and coil pulses (green). Kits includes new screws and standoffs. Price discount if you purchase more than 1. Modernize your whole machine.