Powered Solderless Breadboard w/ LCD Voltage Displays (PBB-272A) 5 Distribution Strips (500 tie points) - 3 Terminal Strips (1890 tie points) 4 Binding Posts - One Ground - One 5VDC (1 AMP) Constant Power One 0 to +15VDC (500mA) Variable Power One 0 to -15VDC (500mA) Variable Power 110VAC Input Power, +/- 10%