Best Rheostats of 2026

The Rainbow Art Glass Rheostat helps you control the heat of your soldering iron by adjusting the electrical current, so your iron stays at the right temperature for your work. With a maximum power of 250 watts, it can handle most soldering tasks efficiently. It runs on standard 120V power, making it easy to use in many settings. The solid-state circuit design ensures reliable and stable performance, while the included mounting brackets let you set it up conveniently in your workspace. This tool is designed to accept both 2 and 3 prong irons, giving you flexibility with your soldering equipment.

The uxcell 25W Rheostat is a ceramic wirewound potentiometer resistor that offers a power rating of 25W and a resistance value of 100 Ohm. With a mounted hole diameter of 5mm, thread diameter of 10mm, and shaft diameter of 6mm, this rheostat comes with a knob size of 24.5 x 21mm and an overall size of 43 x 70mm. The lightweight design, compact size, and easy-to-install threaded shaft make it convenient for adjusting electrical resistance in various applications.

The BZJUNQI Rheostat is designed to give you precise control over your Miller Bobcat 225 series welder or generator, making it easier to adjust power output accurately. With a resistance of 10 Ohms and a power rating of 100W, this part helps you fine-tune your machine’s current to improve performance and extend its lifespan. It fits various models including the 225G, 225D, and 225Nt made before a specific serial number, so you should check compatibility before purchasing. By restoring your welder’s functionality, this rheostat ensures your equipment works reliably, keeping your projects on track.

This Electronics-Salon Rheostat features a 50 ohm 25 Watts High Power Ceramic Wirewound Potentiometer, ideal for adjusting or controlling electrical resistance in a circuit. The product comes in a quantity of one and has a shaft diameter of 6mm. The size of A=43mm, B=40mm, F=50mm, L=24 +/-1mm makes it compact and easy to install. The Rheostat is 100% new and is a must-have for any electronic engineer or DIY enthusiast.

The Mizoneparts Rheostat is a reliable replacement part designed for Miller Bobcat 225G and related portable welder generators. It features a durable design with a special high-temperature coating that protects it from moisture, dust, and heat, so you can trust it to perform well even in tough conditions. The high-quality carbon brush ensures steady power output and long-lasting use, helping your equipment run smoothly over time. Precision manufacturing with an alloy wire wound on a ceramic plate improves heat dissipation and overload tolerance, giving you a stable and efficient performance when you need it most.

The Electronics-Salon Potentiometer is a high-power, 200 ohm wirewound rheostat designed for various electronic applications. With a robust 25 watts capacity, this component ensures durability and reliability in your projects. Its compact size makes it easy to fit into different setups, while a 6mm shaft diameter allows for smooth adjustments. You’ll appreciate the convenience of having a new, high-quality potentiometer that enhances control over electrical resistance, making it an excellent choice for hobbyists and professionals alike.

The Ohmite M5090C Rheostat is a genuine product designed to replace the Lincoln M5090-C part, ensuring you get a reliable and authentic component. This means you won’t have to worry about low-quality knock-offs that might fail or underperform. It works perfectly with Cable Controls Remote Boxes, making it a versatile choice for your setup. While mounting screws aren’t included, the option to use longer screws with washers gives you flexibility in installation. This makes the Ohmite M5090C Rheostat a dependable and convenient upgrade for your equipment.

The Electronics-Salon Wirewound Potentiometer is a high-power variable resistor designed to handle up to 25 watts, making it suitable for applications requiring durable and reliable power control. With a resistance of 10 ohms, it allows you to adjust electrical current smoothly and precisely. The ceramic wirewound construction ensures that the potentiometer can withstand heat and maintain performance over time. Its compact size and 6mm shaft diameter make it easy to install in various electronic setups, offering you flexibility and convenience in your projects.

The WQSING Rheostat is a versatile component designed for use with specific welding equipment, including the Bobcat 225 and 250 models, as well as the Hobart Champion 260-DC and Elite series. With a power rating of 150 watts and a resistance of 50 ohms, this rheostat helps regulate electrical flow, ensuring optimal performance during welding tasks. By using this product, you can enhance your welding experience, allowing for better control and efficiency in your work. Its compatibility with various models also makes it a convenient choice for users looking to upgrade or replace their existing rheostat.

The Hapivida Adjustable Slide Rheostat is designed to help you fine-tune voltage with ease, making it an essential tool for any lab or workshop. Its precise 1.5A and 50Ω sliding control lets you regulate current smoothly, which is perfect for delicate circuit work. Thanks to its compact and user-friendly design, you can quickly adjust settings during experiments, saving you time and effort. Built with a sturdy metal bracket, this rheostat stands up to tough lab conditions while delivering reliable performance. Whether you're teaching electrical concepts or working on power equipment, this versatile device adapts to a variety of tasks, simplifying your work and boosting efficiency.