Light Rail Auxiliary Car – Move 2 Grow Lights with 1 Motor

The Light Rail Auxiliary Car is the ultimate efficiency hack for indoor growers looking to expand their coverage without breaking the bank. This robust trolley allows you to move a second grow light using the power of your existing Light Rail motor, effectively doubling your illuminated area while maintaining a perfectly even canopy.

Why settle for static lighting or expensive upgrades?

Are you struggling to cover your entire grow space with just one moving light?

Leaving parts of your crop in the shadows results in uneven growth, popcorn buds, and wasted potential. On the other hand, buying a completely new motor system for a second lamp is a heavy investment that eats into your profit margins. Static lights create hot spots that can stress your plants, while the edges of your room starve for lumens.

The smart solution is to slave a second light to your current setup. With this auxiliary carriage, you transform your single-lamp mover into a dual-lamp powerhouse. It connects seamlessly to your existing drive, allowing you to cover up to 4 meters of canopy (using rail extensions) with synchronized precision. It’s the professional way to scale up.

Quick Spec Sheet

• Product Type: Auxiliary Trolley / Slave Car.
• Compatibility: Light Rail 3.0, 3.5, and 4.0 systems.
• Function: Moves a second light source using one main motor.
• Capacity: Supports standard grow lights and reflectors.
• Mechanism: Glides on the rail, pushed/pulled by the main motor via a rod (rod/rail extensions sold separately).

Advantages of the Auxiliary Car

Upgrading your Light Rail system with this auxiliary car isn't just about saving money on a motor; it's about optimizing your entire environment. Here is why this small addition makes a huge difference:

• Cost Efficiency: You get the performance of a dual-motor setup for a fraction of the price.
• Universal Fit: Whether you have an older 3.0 or the latest 4.0, this carriage is engineered to fit perfectly.
• Heat Management: By keeping two lights moving, you distribute heat more evenly, reducing the risk of leaf burn compared to static fixtures.
• Scalability: It allows you to expand your grow room linearly without complex electrical installations.

Real benefits you’re going to notice

When you install this auxiliary car, the first thing you'll notice is the uniformity of your crop. By moving two lights in tandem, you eliminate the "shady side" of the tent. This means every single branch gets its moment in the spotlight, leading to a flatter, denser canopy and significantly heavier yields at harvest time.

Furthermore, it simplifies your workflow. You don't need to manage two separate timers or worry about two motors falling out of sync. Your lighting system works as one cohesive unit. Whether you are using a heavy HPS with a large Grow light reflector or a modern LED board, this carriage handles the movement smoothly, ensuring your plants get light from multiple angles to penetrate deep into the foliage.

How to set it up correctly

1. Install the Rail: Ensure you have enough rail length (you may need an extension) to accommodate the travel distance of two lights.
2. Mount the Carriage: Slide the Auxiliary Car onto the rail track.
3. Connect the Rod: Attach the push/pull rod (usually included in add-a-lamp kits or sold separately) between your motorized car and this auxiliary car.
4. Hang the Light: Suspend your second lamp from the auxiliary car eyelet.
5. Balance: Make sure both lights hang at the same height and the cable slack is sufficient for the full range of motion.
6. Test Run: Let the motor run a full cycle to ensure the auxiliary car glides smoothly without snagging.

Frequently Asked Questions

Does this product include a motor?

No, this is a slave carriage designed to be pulled or pushed by your existing Light Rail motor.

Can I use this with heavy LED lights?

Yes, it is robust enough to carry standard grow lights, including heavy Indoor LED Grow Lights 800W, provided your rail is securely mounted.

How far apart can the lights be?

The distance depends on the length of the connecting rod you use, but typically it allows for optimal spacing to cover a rectangular footprint without overlapping too much.

Is it difficult to install?

Not at all. If you already have a Light Rail installed, adding this carriage takes just a few minutes. It simply slides onto the track.

Personal Experience of Pevgrow’s CEO (Alan)

"I've always been a fan of light movers because they mimic the sun's natural path. When I expanded my personal setup from a square meter to a rectangular 2x1m tray, I didn't want to buy a whole new robotic kit. I grabbed one of these auxiliary cars and a rail extension.

The difference is night and day. You literally double your production capacity with one motor. My tip: keep the wheels clean and the rail level. If you do that, this little piece of hardware will run for years without a squeak. It's the smartest investment for scaling up."