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Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
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MYSWEETY 3PCS SSR-40DA Solid State Relay Single Phase Semi-Conductor Relay Input 3-32V DC Output 24-380V AC: Amazon.com: Industrial & Scientific
Aube Technologies RC840T-240 On/Off Switching Electric Heating Relay with Built-in 24 V Transformer, Black - Wall Light Switches - Amazon.com
Amazon.com: Mini Timer Time Delay Relay .1 Sec to 400 days. 3V 12V 18V 5A. Power on or Off Delay, Cycling and More. Compatible with B00PD65UGA : Tools & Home Improvement
Amazon.com: ONLINE LED STORE 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for
Diitao 7PCS DC 3V 1 Channel Optocoupler Relay 3V 3.3V High Level Driver Module Isolated Drive Control Board for ESP8266 Based Board…: Amazon.com: Industrial & Scientific