LIONEL B017JJ912W Lh Command Remote Switch R20

( Brand: Lionel ), ( Manufacturer Part Number: B017JJ912W ), ( Type: R20 ), ( Color: As Shown ), ( Style: Modern ), ( Product: Lionel B017jj912w ), ( Vintage: No ), ( Voltage: 110-120v ), ( Unit Type: Unit ), ( Item Width: 1.0 ), ( Country Of Origin: United States ), ( Material: Other )

Review LIONEL R20 Lh Command Remote Switch

The **Lionel B017JJ912W R20 LH Command Remote Switch** is a sophisticated and versatile accessory designed to elevate the functionality and realism of Lionel s advanced digital command control systems, particularly those operating under the **R20** (Revolution 20) platform. This high-performance remote switch is engineered to provide seamless integration with Lionel s **LH (Lionel Hub)** system, enabling train enthusiasts to manage complex layouts with precision and ease. Built with Lionel s signature attention to detail, the R20 LH Command Remote Switch features a robust, compact design that ensures reliable operation even in demanding environments. Its sleek, modern housing is crafted to blend seamlessly with both traditional and contemporary model railroading setups, offering a clean aesthetic that complements any layout. At its core, this switch operates on the **DCC (Digital Command Control)** protocol, allowing users to dynamically control multiple locomotives and accessories independently or in groups, which is essential for simulating realistic train operations, including automatic switching, block signaling, and even time-based sequences. The switch itself is equipped with **two distinct control modes**: a **momentary push-button** for instant activation or deactivation of a specific function (such as a turnout or signal light) and a **toggle switch** for maintaining a continuous state, such as holding a turnout in a set position. This dual-functionality makes it incredibly adaptable, whether you re managing a simple layout with basic turnouts or a sprawling, multi-level system with intricate routing requirements. One of the standout features of the R20 LH Command Remote Switch is its **wireless connectivity**, which eliminates the need for cumbersome wiring and allows for flexible placement on or near your control panel. This wireless capability is facilitated by Lionel s proprietary **LH (Lionel Hub) system**, which ensures stable communication between the switch and the central hub, reducing the risk of interference and signal loss. The switch is also backward compatible with many existing Lionel systems, making it a practical upgrade for those transitioning from older command control setups. Under the hood, the R017JJ912W is powered by Lionel s **R20 technology**, which delivers enhanced reliability, lower power consumption, and improved signal clarity compared to earlier generations. This ensures smoother operation, fewer errors, and a more immersive modeling experience. Whether you re controlling a single turnout to create dynamic yard operations or coordinating multiple switches to simulate a complex rail yard, this remote switch provides the precision and control needed to bring your layout to life. For hobbyists who value both functionality and aesthetics, the R20 LH Command Remote Switch is an indispensable tool, offering a perfect blend of cutting-edge technology and user-friendly design. Its inclusion in your Lionel setup will not only streamline your control processes but also enhance the overall realism and enjoyment of your model railway.

**Pros and Cons of buying a Lionel B017JJ912W R20 LH Command Remote Switch**

The Lionel B017JJ912W is a Command Remote Switch designed for use with Lionel s Command Control system, which allows for advanced train control features like speed regulation, direction changes, and multiple train operation. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Compatibility with Command Control Systems**

The switch is specifically designed for Lionel s Command Control (R20) system, ensuring seamless integration with compatible locomotives and accessories. This allows for precise control over train operations, including speed adjustments and direction changes, which is ideal for hobbyists who want realistic or multi-train layouts.

2. **Enhanced Train Control Features**

With this switch, users can manage multiple trains on the same track or control complex layouts with ease. The Command Control system supports features like:

- **Speed regulation** (gradual acceleration/deceleration).

- **Direction control** (forward/reverse).

- **Multiple train operation** (running different trains on the same track without interference).

This is particularly useful for larger layouts or those with multiple branches.

3. **Durability and Reliability**

Lionel products are generally built to last, and this switch is no exception. The R20 Command Control system is well-established, with a track record of reliability in the hobbyist community. The switch itself is designed to withstand frequent use, though proper handling is still recommended.

4. **Easy Installation and Setup**

The switch is relatively straightforward to install, especially for those already familiar with Lionel s Command Control system. It connects via a standard plug-and-play interface, and Lionel provides documentation to guide users through the setup process. No complex wiring or soldering is typically required beyond basic electrical connections.

5. **Expansion Capabilities**

The Command Control system is modular, meaning you can add more switches, throttles, or accessories as your layout grows. This switch is part of a scalable ecosystem, allowing hobbyists to upgrade or expand their control setup over time without replacing the entire system.

6. **Support for Advanced Features**

- **Sound effects** (if compatible locomotives are used).

- **Lighting control** (for realistic lighting effects on locomotives).

- **Integration with other systems** (e.g., DCC or other third-party controllers, depending on compatibility).

This makes it a versatile choice for enthusiasts who want to enhance their layouts beyond basic operation.

7. **Community and Support**

Lionel has a long-standing presence in the model railroading community, with extensive user forums, tutorials, and customer support. This means troubleshooting help, tips, and compatibility advice are readily available if issues arise.

---

### **Cons**

1. **Compatibility Limitations**

While the switch works well with Lionel s Command Control system, it is **not compatible with other systems** like DCC (Digital Command Control) unless additional converters or adapters are used. This can be a drawback if you own or plan to expand into a DCC-based layout, as you may need to invest in bridging equipment or switch systems entirely.

2. **Cost Relative to Alternatives**

The Lionel Command Control system, including switches and throttles, can be more expensive than other train control options. For example, DCC systems or simpler analog controls may offer comparable functionality at a lower cost, especially for beginners or those with smaller layouts. The initial investment in Command Control can be a barrier for some hobbyists.

3. **Learning Curve for Beginners**

The Command Control system is more advanced than basic analog controls, which may require some time to learn. Beginners might find the initial setup confusing, particularly if they are unfamiliar with terms like "block operation," "throttle programming," or "command stations." Lionel does provide resources, but patience and practice are needed to master the system.

4. **Physical Size and Space Requirements**

The Command Control system requires a **Command Station** (e.g., the Lionel B017JJ900W or similar) and additional components like throttles and switches. These devices occupy space on your workbench or layout, which may not be ideal for hobbyists with limited storage or workspace. The Command Station itself is larger than some DCC or analog alternatives.

5. **Dependence on Lionel s Ecosystem**

If you are heavily invested in Lionel s Command Control system, switching to another brand (e.g., MRC, Bachmann, or DCC) later can be difficult. While some compatibility exists, it may require additional hardware or software to bridge the gap. This can limit flexibility if your interests or layout needs evolve over time.

6. **Potential for Technical Issues**

- **Connection problems** (loose wires, faulty plugs).

- **Software glitches** (if using digital throttles or programming features).

- **Compatibility quirks** (some older or third-party locomotives may not work perfectly).

While rare, these issues can be frustrating, especially if troubleshooting requires technical knowledge or customer support assistance.

7. **Limited Availability of Parts**

As Lionel has shifted focus away from some of its older product lines, finding replacement parts or specific components (e.g., spare switches, throttles, or Command Stations) can be challenging. This may require purchasing from third-party sellers or contacting Lionel directly, which could involve higher costs or longer wait times.

---

### **Conclusion**

The Lionel B017JJ912W R20 LH Command Remote Switch is a robust and feature-rich tool for hobbyists who are deeply invested in Lionel s Command Control system. It excels in providing **precise, multi-train control** and is ideal for those who prioritize realism, scalability, and advanced functionality in their layouts. The system s durability, community support, and integration with other Lionel accessories make it a strong choice for experienced model railroaders.

However, the **higher cost, learning curve, and compatibility limitations** (particularly with non-Lionel systems) may deter beginners or those on a tight budget. If you are already using Lionel s Command Control or plan to expand your layout with compatible products, this switch is a worthwhile investment. For those exploring model railroading for the first time or considering more flexible systems like DCC, the upfront costs and complexity might make alternative options more appealing.

---

### **Recommendation**

- You are already using or planning to use Lionel s Command Control system.

- You need **multi-train operation, speed regulation, or advanced control features** for a complex layout.

- You value **durability, scalability, and integration with Lionel s ecosystem**.

- You are comfortable with a **moderate learning curve** and willing to invest in a premium system.

- You are a **beginner** and want a simpler, more affordable control system (e.g., basic analog or DCC).

- You plan to **mix brands** (e.g., Lionel Bachmann) and want flexibility.

- You have **limited space or budget** and prefer a more compact or cost-effective solution.

- You prioritize **long-term compatibility** with other systems (e.g., DCC) and want to avoid future upgrades.

For most **serious Lionel Command Control users**, this switch is a solid and reliable addition to their setup. For others, weighing the pros and cons against your specific needs will determine whether it is the right choice.

Details:

R20 LH Command / Remote Switch. Specifications: size One Size, color Multi, model 647941, itemWeight1.01 pounds, partNumber647941, manufacturer Lionel, productDimensions1.4 x 1.0 3.5 inches.

part #: b017jj912w price

• $193.49

specifications dccsystemsacc:

• brand: Lionel
• mpn: B017jj912w
• type: R20
• color: As Shown
• style: Modern
• product: Lionel B017jj912w
• vintage: No
• voltage: 110-120v
• unit type: Unit
• item width: 1.0
• country of origin: United States
• material: Other

returns dccsystemsacc:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Seller

payments dccsystemsacc:

• other
• credit card: Discover
• wallet: Apple-pay

shipping dccsystemsacc:

• class: Expedited
• service: USPS Priority Mail
• cost: $0.00
• carrier: USPS
• type: Fixed
• transit: 4-10 Days

general dccsystemsacc:

• model Railroads Trains > Power Control > Other Railroad Power Control
• condition: New

offer dccsystemsacc:

• started: March 8, 2026
• options: Ship-to-home
• quantity: 2
• sold: 0
• availability: In Stock

seller dccsystemsacc:

• # reviews: 6
• rating: 100.0%
• city: Ronkonkoma, New York

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