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Controllable Four Outlet Power Relay Module version 2 [(Power Switch Tail Alternative)] : ID 2935 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits
G9EJ DC Power Relay - Omron | DigiKey
Relay Specialties, Inc. - Picker - Products - Power Relays
HF92F-012D-2A: Mini-High Power Relay, 12V, 2NO, 30A, sealed at reichelt elektronik