Commonly used for car horns, fog lights, and fuel pumps, these are built for DC electrical systems and often include mounting tabs or waterproof housings. Viair 40-Amp Relay Summit Racing& more Go to product viewer dialog for this item.
Schneider Electric SimpliFi 20A 1.5HP Industrial Power Solution Grainger Industrial Supply& more Go to product viewer dialog for this item. buy relay switch
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. Commonly used for car horns, fog lights, and
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. A heavy-duty, single-pole relay with blade terminals
A highly compact option for controlling one circuit up to 8A. It typically costs between $16.99 $8.50 at Shelly USA or $10.19 at Best Buy . Shelly 1PM Gen4 Smart Relay Switch Best Buy& more Go to product viewer dialog for this item.
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.