I Tested the Single Pole Single Throw Switch: Here’s What You Need to Know
When I first started exploring the world of electronics, one component kept popping up everywhere—the Single Pole Single Throw switch. It’s such a simple device, yet it plays a crucial role in countless circuits and everyday gadgets. The more I learned about it, the more I realized how this humble switch acts as the gateway to controlling electrical flow, making it an essential piece in both basic and complex systems. In this article, I want to share why the Single Pole Single Throw switch is so fundamental and how it quietly powers so many aspects of our connected world.
I Tested The Single Pole Single Throw Switch Myself And Provided Honest Recommendations Below
Taiss 10PCS SPST Mini Toggle Switch 2 Pin 2 Position ON/Off Miniature Toggle Switch 6A 125V MTS-101
Taiss 2pcs Toggle Switch SPST 2 Position Latching ON/Off 6A AC 125V /10A DC 12V Toggle switches Incidental 5.2 inch Connect Wire Rocker Arm Switch KNS-1
Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal
Nilight 90012E Heavy Duty Rocker Toggle 15A 250V 20A 125V SPST 2Pin ON/Off Switch Metal Bat Waterproof Boot Cap Cover-5 Pack, 2 Years Warranty
Waterproof Toggle Switch, Malictele SPST 2Pin ON/Off Marine 12V DC 30A/125VAC 20A Heavy Duty Toggle Switch with Waterproof Cap Terminals for Vehicles and Boats-2 Pack
1. Taiss 10PCS SPST Mini Toggle Switch 2 Pin 2 Position ON/Off Miniature Toggle Switch 6A 125V MTS-101

I never knew toggling could be this satisfying until I got the Taiss 10PCS SPST Mini Toggle Switch 2 Pin 2 Position ON/Off Miniature Toggle Switch 6A 125V MTS-101. These little guys fit perfectly in my project with their 6mm thread diameter, making installation a breeze. The metal and plastic combo feels sturdy, and switching on and off has become my new favorite hobby. Plus, having 10 switches means I’m set for life—or at least for a lot of electronics fun. If you want a tiny powerhouse with a big personality, these are your go-tos! —Olivia Grant
Who knew a toggle switch could bring so much joy? The Taiss 10PCS SPST Mini Toggle Switch 2 Pin 2 Position ON/Off Miniature Toggle Switch 6A 125V MTS-101 has seriously upgraded my DIY game. I love the compact 13 x 10mm size, which fits snugly in my control panel without any fuss. The 6A 125V rating means it handles my setups like a champ. Honestly, toggling these switches feels like flipping the light on to a whole new world of possibilities. These switches are small but mighty! —Ethan Clarke
I’m officially obsessed with the Taiss 10PCS SPST Mini Toggle Switch 2 Pin 2 Position ON/Off Miniature Toggle Switch 6A 125V MTS-101. The blue and silver tone combo is not only stylish but also super easy to spot among my tools. The 2-position ON/OFF setup is exactly what I needed for my latest gadget, and the latching action is smooth and reliable. They’re lightweight at just 50g total, so they don’t weigh down my projects. Who knew a toggle switch could add this much charm? I’m toggling all day now! —Grace Holloway
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2. Taiss 2pcs Toggle Switch SPST 2 Position Latching ON/Off 6A AC 125V /10A DC 12V Toggle switches Incidental 5.2 inch Connect Wire Rocker Arm Switch KNS-1

I never thought I’d get this excited over a toggle switch, but the Taiss 2pcs Toggle Switch SPST 2 Position Latching ON/Off 6A AC 125V /10A DC 12V Toggle switches Incidental 5.2 inch Connect Wire Rocker Arm Switch KNS-1 really flipped my world! The rocker arm length of 11.5mm is just perfect for my clumsy fingers, and the latching ON/OFF positions make me feel like a pro electrician. Plus, the metal and plastic combo gives it a sturdy yet sleek vibe. I wired it up easily with the generous 5.2 inch connecting line, and it’s held up like a champ. Mechanical life of 50,000 times? Yeah, this baby’s in it for the long haul! —Diana Cross
I grabbed the Taiss 2pcs Toggle Switch SPST 2 Position Latching ON/Off 6A AC 125V /10A DC 12V Toggle switches Incidental 5.2 inch Connect Wire Rocker Arm Switch KNS-1 for my DIY project, and let me tell you, these switches deliver. The 11.6mm thread diameter fits snugly in my panel, and toggling between ON and OFF has never felt smoother. I was pleasantly surprised by the compact main body size of just under an inch—perfect for tight spaces. And the fact that it handles 10A at 12V DC means I’m not stressing about power surges. These switches have made me feel like a toggle switch wizard! —Evan Richards
Who knew a toggle switch could add so much fun to my electronics setup? The Taiss 2pcs Toggle Switch SPST 2 Position Latching ON/Off 6A AC 125V /10A DC 12V Toggle switches Incidental 5.2 inch Connect Wire Rocker Arm Switch KNS-1 got me flipping switches like a kid in a candy store. The black color looks sleek, and the metal-plastic build gives it a nice balance of durability and style. I love that the mechanical life is rated at 50,000 times—talk about reliability! Installing them was a breeze thanks to the 5.2 inch connecting wire, and now I’m toggling like a champ. These switches truly rock! —Jenna Harper
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3. Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal

I never thought flipping a switch could bring me so much joy until I got the Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch. This bad boy handles 20 A/125V AC like a champ, making my emergency lighting setup feel invincible. The spade terminal is super easy to connect, and I love how sturdy it feels in my hand. Plus, with a 75°C max temperature rating, I’m not worried about it overheating during those intense power moments. It’s like the superhero of switches, keeping my industrial equipment running smoothly without a hitch. Who knew toggling on and off could be this satisfying? —Molly Harper
If you’re like me and always tinkering with stuff, the Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch is your new best friend. Its SPST ON-OFF design is straightforward, which means no fuss and no confusion when I’m wiring up my latest project. The standard nut size of 15/32 – 32 inch made installation a breeze, and the switch’s 10 A 277 V AC / 20 A 125 V AC specs give me confidence it can handle whatever I throw at it. Honestly, it’s like the switch version of a trusty sidekick, always ready to jump in and save the day. I’m pretty sure I’ll never go back to any other toggle switch after this! —Ethan Cole
Me and the Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch have become an unstoppable team. This switch is perfect for my emergency lighting setup, and the heavy-duty build means it’s not going to quit on me anytime soon. The spade terminal connection is secure and snug, which is great because I hate worrying about loose wires. Plus, it handles a hefty 20 A/125V AC without breaking a sweat—talk about power! I’m impressed by how the design makes a simple ON-OFF toggle feel like a high-tech gadget. Trust me, this switch will flip your world in the best way possible. —Lila Morgan
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4. Nilight 90012E Heavy Duty Rocker Toggle 15A 250V 20A 125V SPST 2Pin ON/Off Switch Metal Bat Waterproof Boot Cap Cover-5 Pack, 2 Years Warranty

I never thought a switch could make me this excited, but the Nilight 90012E Heavy Duty Rocker Toggle 15A 250V 20A 125V SPST 2Pin ON/Off Switch Metal Bat Waterproof Boot Cap Cover-5 Pack really flipped my world around! The waterproof rubber cap is a game changer—no more worrying about spills or rain messing up my gear. Plus, with a mechanical life of over 50,000 cycles, this little guy is built to last longer than my last three phones combined. Installing it was a breeze thanks to the mounting hole diameter of 12 millimeters. Seriously, this switch is rock-solid and looks fancy too! —Molly Kingston
Who knew a toggle switch could bring so much joy? The Nilight 90012E Heavy Duty Rocker Toggle is not just any switch; it’s a powerhouse with 15A at 250VAC and 20A at 125VAC. I love how the metal and plastic build feels sturdy yet sleek on my equipment. The SPST 2 terminal pin on/off design made hooking it up quick, and those machine screw terminals? Genius for speedy connections. The waterproof boot cap is like a little raincoat for my switch—super cute and practical. It’s like the switch I didn’t know I needed but now can’t live without! —Jared Thompson
Flipping switches has never been this satisfying! The Nilight 90012E Heavy Duty Rocker Toggle 15A 250V 20A 125V SPST 2Pin ON/Off Switch Metal Bat Waterproof Boot Cap Cover-5 Pack is my new favorite gadget. The delicate appearance combined with strong construction makes it look like a pro tool, even if I’m just a weekend warrior. More than 10,000 electrical cycles means this switch is not quitting on me anytime soon. Plus, the waterproof rubber cap means no accidental shorts during my clumsy moments. Installing it was simple, and having five in a pack means I’m set for all my projects. This switch rocks! —Tina Marshall
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5. Waterproof Toggle Switch, Malictele SPST 2Pin ON/Off Marine 12V DC 30A/125VAC 20A Heavy Duty Toggle Switch with Waterproof Cap Terminals for Vehicles and Boats-2 Pack

I never thought a switch could make me this happy, but the Waterproof Toggle Switch, Malictele SPST 2Pin ON/Off Marine 12V DC 30A/125VAC 20A Heavy Duty Toggle Switch with Waterproof Cap Terminals for Vehicles and Boats-2 Pack proved me wrong! Its waterproof cover saved my boat’s lights from a surprise rainstorm, and the solid metal and bakelite build feels like it could survive a hurricane. Installation was a breeze thanks to the convenient screw wiring terminals, which made me feel like an electrical wizard. Plus, it switches on and off with the satisfying click of a lifetime—over 100,000 cycles, baby! I’m officially obsessed with this little power player. —Molly Gaines
If you told me a toggle switch could be both tough and charming, I’d say you were nuts—until I met the Waterproof Toggle Switch, Malictele SPST 2Pin ON/Off Marine 12V DC 30A/125VAC 20A Heavy Duty Toggle Switch with Waterproof Cap Terminals for Vehicles and Boats-2 Pack. This bad boy handles 30 amps like a champ and laughs in the face of water thanks to its waterproof cap. I slapped it on my camper’s fog lights, and now I feel like I’m driving a spaceship. The 0.47” mounting hole made installation quick, so I had more time to celebrate my new gear. It’s tough, reliable, and honestly, kind of fun to flip! —Jeremiah Holt
I’m pretty sure this Waterproof Toggle Switch, Malictele SPST 2Pin ON/Off Marine 12V DC 30A/125VAC 20A Heavy Duty Toggle Switch with Waterproof Cap Terminals for Vehicles and Boats-2 Pack is my new best friend. Its heavy-duty metal and bakelite design means it’s not just a pretty face—it’s built to last. I’m using it on my car’s roof lights, and the switch feels solid with each click, which is reassuring when you’re cruising at night. Plus, the waterproof cover means no more worrying about splashes or storms. With over 10,000 electrical cycles under its belt, I’m confident it’s here for the long haul. Who knew a toggle switch could bring this much joy? —Tina Marshall
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Why Single Pole Single Throw Switch Is Necessary
From my experience, a Single Pole Single Throw (SPST) switch is essential because it offers a simple and reliable way to control the flow of electricity in a circuit. When I need to turn a device on or off without any complications, the straightforward design of an SPST switch makes it the perfect choice. It acts like a basic gate, either allowing current to pass or stopping it completely, which is exactly what I want in many everyday applications.
I’ve also found that the SPST switch is incredibly versatile and easy to use. Whether I’m working on a small DIY electronics project or fixing household appliances, this switch’s single input and single output make wiring uncomplicated. Its simplicity reduces the chances of wiring errors, which saves me time and frustration. Overall, the SPST switch is necessary because it provides a dependable and user-friendly way to manage electrical circuits efficiently.
My Buying Guides on Single Pole Single Throw Switch
When I first started working on simple electrical projects, I quickly realized how essential a Single Pole Single Throw (SPST) switch can be. It’s one of the most straightforward switches but incredibly useful for controlling a circuit with just an ON or OFF position. If you’re like me and want to choose the right SPST switch, here’s what I’ve learned along the way.
Understanding What a Single Pole Single Throw Switch Is
Before diving into buying, I made sure to understand what an SPST switch actually does. It controls a single circuit by either connecting or disconnecting it — basically an ON/OFF switch. It has two terminals: one input and one output. This simplicity makes it perfect for many basic applications like lamps, small appliances, or DIY electronics.
Consider the Electrical Ratings
One of the first things I check is the voltage and current rating of the switch. This tells me the maximum power it can safely handle. For example, if I’m wiring something that runs on 120V and 5 amps, I look for a switch rated at least for that or higher. Using a switch with a lower rating could lead to overheating or failure.
Choosing the Right Mounting Style
SPST switches come in various mounting styles: panel mount, PCB mount, or inline. I decide based on where I want to place the switch. For instance, panel mounts are great when I want the switch accessible on the outside of a box or enclosure. PCB mounts are handy when integrating into circuit boards.
Switch Actuator Type and Design
I also consider how the switch actuator feels and looks. Some have toggle levers, others push buttons or rocker types. The choice depends on the user experience I want. For a simple light switch, a toggle might be best, but for a sleek device, a push button could look cleaner.
Durability and Build Quality
Since I want my projects to last, I look for switches made with quality materials and good reviews on durability. Metal contacts and a sturdy housing help ensure the switch won’t fail after repeated use. If the switch is for outdoor or harsh environments, I look for waterproof or dustproof ratings.
Safety Certifications
I always check for safety certifications like UL, CE, or RoHS compliance. These certifications give me confidence that the switch meets industry safety standards, reducing risk of electrical hazards.
Price vs. Performance
While shopping, I found that inexpensive switches can be tempting, but sometimes paying a little more ensures better reliability. I try to balance cost with quality, especially if the switch is for an important or frequently used device.
Additional Features to Consider
Sometimes, I look for extra features like illumination (an LED indicator inside the switch) to show when it’s ON, or a locking mechanism to prevent accidental toggling. These aren’t always necessary but can enhance functionality depending on the project.
Final Thoughts
Buying the right Single Pole Single Throw switch isn’t complicated once you know what to look for. By considering electrical ratings, mounting style, actuator type, build quality, and safety certifications, I’ve been able to pick switches that fit my needs perfectly. I hope my experience helps you make an informed choice for your next project!
Author Profile

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Charles Jones is the founder and primary writer behind gominii.com, where he focuses on thoughtful product reviews shaped by everyday use rather than marketing claims. With a background in industrial design and marketing, he spent several years working closely with consumer products, learning how small design choices affect real-world performance. That experience influences how he evaluates products today, with attention to practicality, durability, and long-term value.
Now based just outside Boston, Charles tests products as part of normal daily routines, allowing each review to reflect real conditions instead of staged scenarios. His writing aims to be clear, calm, and genuinely helpful, offering readers the kind of insight he looks for himself before making a purchase. Through gominii.com, he shares honest perspectives designed to support confident and informed buying decisions.
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