Buy Relay Switch May 2026

What and amperage are you looking to switch for your specific project?

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.

A 5-pin SPDT relay kit designed for wet environments like boats or off-road vehicles. Sold for $4.29 at TrueMods . Unique Bargains DC 12V 40A SPST Auto Car Relay Walmart - Tasharina Corp 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.

What and amperage are you looking to switch for your specific project?

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.

A 5-pin SPDT relay kit designed for wet environments like boats or off-road vehicles. Sold for $4.29 at TrueMods . Unique Bargains DC 12V 40A SPST Auto Car Relay Walmart - Tasharina Corp 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.

Type in your primary email address below to open Ben's daily email tips and a free digital copy of his prestigious Email Players newsletter.

view pixel

I agree that when I sign up above, I will be added to a marketing mailing list where I will receive DAILY email tips and promotional offers from Ben Settle.

NOTE: You’ll have to confirm your subscription to join the list. If you do not see the confirmation in your inbox, check your spam, junk or promotions folder. buy relay switch