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A high-power SSR for AC output with no moving parts for high-speed switching. Available for $68.62 at 54 Energy .

Supports higher loads up to 16A and includes built-in power monitoring. Available for $27.99 at Walmart . Shelly 2PM Gen4 Smart Relay Switch 2-Channel Shelly USA& more Go to product viewer dialog for this item. buy relay switch

Built for panel mounting or DIN rail installation, these handle high voltage and current for industrial automation. A high-power SSR for AC output with no

A budget-friendly pack of two relays with harness sockets for $12.49 at Walmart . Electronics & Hobbyist Relays Available for $27

Relay switches are categorized by their application, ranging from smart home automation to heavy-duty industrial or automotive use. When choosing a relay, ensure the matches your control signal (e.g., 5V for Arduino, 12V for cars) and the contact rating can handle the power of the device you are switching. Smart Home Relays

A dual-channel relay for controlling two circuits or motors like roller shutters. Often sold as a 2-pack for $70.50 $56.40 at Shelly USA . Automotive & 12V Relays