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Amazon.com: Nilight SPDT Relay Replacement 12V 5 Prong SPDT Auto Tilt Trim Relay (Pack of 10) 40/30 AMP Electrical Power Relay Switch 5 Pin Bosch Style Relay for Automotive Cars Marine Boats,2
Amazon.com: PowerMax PMTS-30 30 Amp Automatic Transfer Switch with 12 Volt DC Relay | 2 – 110Vac inputs to a Single 110Vac Output | Off-Grid | Back-up Power Solutions : Automotive