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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 .

These are modules designed to interface with microcontrollers like Arduino or Raspberry Pi for low-voltage logic switching. Arduino Shield 4 Relays arduino.cc& more Go to product viewer dialog for this item.

A heavy-duty, single-pole relay with blade terminals. Available for $6.99 at Northern Tool or $8.75 at Summit Racing . OLS Waterproof Relay Switch Harness Set TrueMods& more Go to product viewer dialog for this item. buy relay switch

Schneider Electric SimpliFi 20A 1.5HP Industrial Power Solution Grainger Industrial Supply& more Go to product viewer dialog for this item.

A budget-friendly pack of two relays with harness sockets for $12.49 at Walmart . Electronics & Hobbyist Relays A high-power SSR for AC output with no

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.

A standard component for DIY projects that switches up to 10A. Sold for $2.00 at aretronics.com or $2.50 at Goliath Automation & Robotics . Industrial Power Relays Arduino Shield 4 Relays arduino

These allow you to automate lights or appliances via Wi-Fi or Bluetooth without a hub. They are designed to fit into standard wall boxes behind your existing switches. Shelly Wi-Fi 1 Mini Gen3 Smart Relay Best Buy& more Go to product viewer dialog for this item.