Module DC-DC 12VIN 3-OUT 5V/12V/-12V 2.5A/0.5A/0.5A 30W 10-Pin

CAMDENBOSS CTSOS433/12BK Panel Mount Barrier Terminal Block, 2 Row, 12 Ways, 450 V
Electromechanical Relay 12VDC 320Ohm 5A SPDT(16x11x11.5)mm THT Telecom Relay
Cylindrical Battery Contacts, Clips, Holders & Springs 6 C CELLS W/6 LDS