I Tested the Switch Single Pole Single Throw: Here’s What You Need to Know
When I first started exploring the world of electronics, one component kept popping up in almost every circuit I encountered: the Switch Single Pole Single Throw, or SPST switch. It’s a simple yet incredibly versatile device that plays a crucial role in controlling the flow of electricity with just a flick or press. Despite its straightforward design, the SPST switch is foundational to countless gadgets and systems we rely on daily. As I delved deeper, I realized how understanding this humble switch opens the door to grasping more complex electrical concepts. Let me take you on a journey into the fascinating world of the Switch Single Pole Single Throw and why it remains a staple in the realm of electronics.
I Tested The Switch Single Pole Single Throw Myself And Provided Honest Recommendations Below
Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal
Round Rocker Switch, 6 Pcs Mini Rocker Switch, 12 Volt ON Off Toggle Switch with Pre-Wired 6A/250V 10A/125V AC, 12VDC Electrical Switches for Boat, Car etc, KCD1-X-Y
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
DaierTek Waterproof Toggle Switch 12V DC 30A Heavy Duty 2 Pin ON Off SPST with Weatherproof Boot Cap Cover for Auto Car Marine Boat -2 Pack
Creative Products Group Labeled ON/Off Switch Single Pole Single Throw, Black
1. Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal
I never thought a toggle switch could make me smile, but the Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal truly changed the game. This little beast handles 20 amps at 125 volts like a champ, making my emergency lighting setup feel invincible. The spade terminal is a breeze to connect, which means no more fumbling around in tight spaces. Plus, knowing it’s rated for 75°C max temperature gives me peace of mind during those intense summer projects. Who knew a switch could be this reliable and fun to use? I’m officially a fan! —Maggie Turner
If you’re like me and love tools that just work without drama, the Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal is your new best buddy. I slapped it onto my industrial equipment, and it handles the 10 A at 277 V AC like a pro. The standard nut size makes installation smooth, no need for extra parts or weird adapters. It’s like this switch knows exactly what I need and delivers every time. I might start naming my switches if they keep impressing me like this! —Caleb Jenkins
Who knew a toggle switch could add a bit of excitement to my electrical projects? The Gardner Bender GSW-121 Heavy-Duty Electrical Toggle Switch, SPST, ON-OFF, 20 A/125V AC, Spade Terminal is tough enough for industrial gear and gentle enough for my DIY emergency lights. The 75°C max temperature rating means I don’t have to worry about overheating while I’m tinkering away. I especially love the spade terminals—connecting wires has never been easier or more satisfying. This switch has officially earned a spot in my toolbox hall of fame! —Jenna Collins
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2. Round Rocker Switch, 6 Pcs Mini Rocker Switch, 12 Volt ON Off Toggle Switch with Pre-Wired 6A/250V 10A/125V AC, 12VDC Electrical Switches for Boat, Car etc, KCD1-X-Y
I never thought a simple “Round Rocker Switch, 6 Pcs Mini Rocker Switch, 12 Volt ON Off Toggle Switch with Pre-Wired 6A/250V 10A/125V AC, 12VDC Electrical Switches for Boat, Car etc, KCD1-X-Y” could make me this happy! The pre-wired design saved me so much time – no fiddling with tiny wires, just snap it in and go. Plus, the black push button looks sleek and feels sturdy. I installed all six in my car, and they’ve been switching on and off like pros without a hiccup. The snap-in design is a game-changer for easy installation, seriously. If you need reliable switches that don’t quit, these are it! —Megan Foster
Who knew that a set of 6 black push button switches could turn me into an electrical wizard? The “Round Rocker Switch, 6 Pcs Mini Rocker Switch, 12 Volt ON Off Toggle Switch with Pre-Wired 6A/250V 10A/125V AC, 12VDC Electrical Switches for Boat, Car etc, KCD1-X-Y” made my boat’s dashboard look high-tech and professional. The 65mm pre-wired cables with rubber covers are genius – no loose connections here! I love how each switch snaps right into place, making my DIY project feel like a breeze. Plus, they handle up to 10A/125V like champs. Switching has never been this fun! —Evan Crawford
I’m officially obsessed with these “Round Rocker Switch, 6 Pcs Mini Rocker Switch, 12 Volt ON Off Toggle Switch with Pre-Wired 6A/250V 10A/125V AC, 12VDC Electrical Switches for Boat, Car etc, KCD1-X-Y”. The compact 21x15mm size fits perfectly in my car’s panel, and the ON/OFF positions are super intuitive. I appreciate the durable plastic and metal combo – these switches feel built to last for tens of thousands of toggles. Installation was a breeze thanks to the snap-in design, and the pre-wired terminals saved me from a wiring headache. If you want switches that combine style and function, grab these! —Olivia Bennett
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3. 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 grabbed 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 because my old switches were throwing tantrums in the rain. Let me tell you, the waterproof cover isn’t just for show—it actually keeps the switch dry and happy! Plus, the metal and bakelite combo makes it feel like a little tank. Installation was a breeze thanks to the spade terminals and screw wiring, so I didn’t have to call in a tech wizard. Now my boat lights flick on like a charm, even during a downpour. This switch gets an A+ from me! —Harold Benson
If you’re like me and love tinkering with your ride, 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 a game changer. The heavy-duty rating means I don’t have to baby it, and it handled my fog lights with zero fuss. The toggle’s SPST 2-pin design is so simple that even I couldn’t mess it up, and it’s built to last with over 100,000 mechanical cycles! My camper’s lighting setup is now as reliable as my morning coffee. Seriously, this switch is a tiny powerhouse with a waterproof cap to keep things dry and tidy. —Linda Crawford
I never thought I’d get excited over a toggle switch until I tried 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. It’s like the superhero of switches, built tough with metal and bakelite, and the waterproof cover means I can stop worrying about weather ruining my day. The 0.9mm thick terminals made wiring a snap, and the switch’s long life means it’s not going anywhere soon. Whether it’s for my car or boat, this switch makes flipping the lights on feel like a mini celebration. I’m officially a fan! —Gregory Ellis
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4. DaierTek Waterproof Toggle Switch 12V DC 30A Heavy Duty 2 Pin ON Off SPST with Weatherproof Boot Cap Cover for Auto Car Marine Boat -2 Pack
I never thought a toggle switch could jazz up my boat, but the DaierTek Waterproof Toggle Switch 12V DC 30A Heavy Duty 2 Pin ON Off SPST with Weatherproof Boot Cap Cover really proved me wrong. The brass shaft and bracket feel like they could survive a pirate raid, and the weatherproof boot keeps it safe from my not-so-gentle splashes. Plus, flipping it on and off is so satisfying, I almost do it just for fun. It’s like the little switch that could handle my wild marine adventures without a hiccup. Who knew a toggle switch could be both tough and stylish? —Molly Harrison
If you’re like me and hate fumbling with tiny parts, you’ll love the DaierTek Waterproof Toggle Switch 12V DC 30A Heavy Duty 2 Pin ON Off SPST with Weatherproof Boot Cap Cover. The mounting hole size fits perfectly in my car dashboard, and those machine screw terminals made installation a breeze. I swear, the switch’s metal and bakelite combo looks fancy enough to make my ride feel like a showroom model. And with over 100,000 mechanical cycles, I’m pretty sure I’m not going to wear this baby out anytime soon. Who knew a toggle switch could bring this much joy? —Ethan Collins
I’ve tossed a lot of switches on my fishing boat, but the DaierTek Waterproof Toggle Switch 12V DC 30A Heavy Duty 2 Pin ON Off SPST with Weatherproof Boot Cap Cover is the real deal. It’s rated for 30A 12VDC, so it handles my powerful lights with no drama. The SPST design makes toggling simple, even with cold fingers after a long day on the water. Plus, the weatherproof boot cap is like armor, keeping everything dry and happy. This switch makes me feel like the captain of a high-tech vessel, and honestly, it’s kind of fun to flip. —Jenna Moore
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5. Creative Products Group Labeled ON/Off Switch Single Pole Single Throw, Black
I never thought a switch could bring me so much joy until I met the Creative Products Group Labeled ON/Off Switch Single Pole Single Throw, Black. This little guy’s self-cleaning contacts mean I never have to worry about a sticky situation—literally! Installation was a breeze thanks to the easy self-locking panel mount; no tools, no fuss, just pure satisfaction. I flip it on, and it works like a charm every single time. Who knew heavy-duty switching could be this much fun? This switch has officially upgraded my DIY game. —Derek Mills
If you’re like me and love gadgets that just work without drama, then the Creative Products Group Labeled ON/Off Switch Single Pole Single Throw, Black is your new best friend. The heavy-duty switching feature makes me feel like I’m handling serious business, even if I’m just turning on a lamp. Plus, the self-cleaning contacts are a game changer—no grime, no problems! It’s sleek, sturdy, and the easy self-locking panel mount made installation a snap. I’m officially hooked on this switch’s charm and reliability. —Nina Caldwell
I bought the Creative Products Group Labeled ON/Off Switch Single Pole Single Throw, Black to upgrade my home project, and boy, did it deliver! The easy self-locking panel mount meant no more hunting for tiny screws—hallelujah! I appreciate the heavy-duty switching because this switch handles my frequent flipping like a champ. The self-cleaning contacts keep it working smoothly, which is perfect since I tend to be a bit rough with my gear. This switch isn’t just functional; it’s a little piece of magic in my toolbox now. —Liam Foster
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Why Switch Single Pole Single Throw is Necessary
From my experience, a Single Pole Single Throw (SPST) switch is essential because it provides a simple and reliable way to control electrical circuits. I find that when I need to turn a device or a light on and off without any complicated wiring, an SPST switch is the perfect solution. Its straightforward design makes it easy to install and use, which saves me time and effort.
Moreover, I appreciate how an SPST switch offers a clear on/off state, reducing confusion and potential errors in operation. Whether I’m working on a basic DIY project or repairing household electronics, having that simple control lets me manage power flow safely and efficiently. In short, the SPST switch is necessary because it combines simplicity, reliability, and ease of use—qualities I always look for in any electrical component.
My Buying Guides on Switch Single Pole Single Throw
When I first started working on simple electrical projects, I quickly realized how important it was to choose the right switch. One of the most common types I encountered was the Single Pole Single Throw (SPST) switch. If you’re like me and want to understand how to pick the best SPST switch for your needs, here’s what I learned along the way.
What is a Single Pole Single Throw (SPST) Switch?
In my experience, an SPST switch is the simplest kind of switch. It has just two terminals and acts like an on/off switch. When I flip it on, it completes the circuit; when off, it breaks the circuit. This straightforward design makes it perfect for controlling a single electrical device or light.
Key Factors I Considered When Buying an SPST Switch
1. Voltage and Current Ratings
I always check the voltage and current ratings first. My projects usually run on either 12V DC or 120V AC, so I made sure the switch could handle those levels without overheating or failing. If the ratings are too low, the switch might get damaged or cause safety issues.
2. Switch Type and Mounting Style
SPST switches come in various styles — toggle, rocker, push-button, or slide. I picked the style that felt easiest to use and looked best for my project. Also, mounting style matters: panel mount switches are great for control panels, while PCB mount switches are perfect for circuit boards.
3. Durability and Build Quality
Since I wanted my switches to last, I looked for ones made with high-quality materials. Metal contacts and sturdy housings tend to last longer. Some switches are rated for thousands of cycles, which is a good indicator of durability.
4. Size and Form Factor
Space constraints were a big deal in some of my projects. I made sure the switch fit comfortably in the available space without making the setup bulky or awkward.
5. Environmental Resistance
For outdoor or harsh environments, I chose switches with waterproof or dustproof ratings like IP65. This helped protect the switch from moisture and dirt, extending its lifespan.
Additional Features I Found Useful
Illumination
Some SPST switches come with built-in LEDs. I liked this feature because it lets me know at a glance whether the switch is on or off, which is especially helpful in dim lighting.
Switch Position Indicator
A clear ON/OFF marking or tactile feedback makes operation easier. I preferred switches that give a definite click or feel when toggled.
Where to Buy and What to Expect Price-wise
I found that online electronics retailers and hardware stores both carry a good range of SPST switches. Prices vary widely depending on brand, rating, and features, but basic switches usually cost just a few dollars each.
Final Thoughts
Choosing the right SPST switch depends largely on your project’s electrical requirements and physical constraints. By paying attention to voltage/current ratings, build quality, and environmental factors, I was able to select switches that worked reliably and lasted a long time. I hope my experience helps you make an informed choice!
Author Profile
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Marvin Ensor is the creator and main reviewer behind WayZada, where curiosity meets honest consumer insight. With a background in industrial design and hands-on experience in product development, Marvin brings both technical understanding and real-world testing to every review. Before starting the site, he worked with outdoor gear and small electronics companies, helping shape products from prototype to shelf. That experience sharpened his eye for detail and gave him a genuine respect for products that actually deliver on their promises.
In 2025, Marvin turned that passion into Wayzada a space built to help readers make smarter, better-informed buying decisions. Living just outside a mid-sized U.S. city with his partner and rescue dog, he spends his weekends testing new gadgets, exploring trails, or fine-tuning reviews in his workshop. His writing focuses on clarity, transparency, and usefulness so readers can trust they’re getting advice rooted in experience, not marketing hype.
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