• 888-815-9763 Sales & Support Mon - Fri, 8am - 5pm PST. Instagram Facebook Twitter Google + Youtube



Save Now on Top Brands Like Twister, CenturionPro and Trimpro... Up To $600 off! Shop Now


LightRail 4.20 AdjustaDrive Kit

Item #: 710142

Be the first to review this product

Light Rail
Your Price:

In Stock

In stock items ship within 24 hours

100% Discreet Shipping Price Match Guarantee The HB Difference

Warranties | Returns & Replacements

LightRail 4.20 AdjustaDrive Kit

Additional Images


LightRail 4.20 AdjustaDrive Kit comes complete with a variable speed LightRail 4.0 AdjustaDrive Motor, a two-piece 2 meter (6’6”) Rail, an Add A Lamp Kit with another 2-meter Rail, Push/Pull Rod, Auxiliary Trolley, instructions and hardware for moving two lights with the enclosed Motor. In addition, this indoor grow Kit comes with pre-installed Extreme Duty Trolley Wheels rated to 75 lbs, and these wheels have a lifetime warranty! Move two lights along 4 meters (12’) of Rail and all from one Kit box – the LightRail 4.20 – With both a 0 to 60 second adjustable time delay for promoting even growth from end to end plus the added feature of two to four feet per minute adjustable speed control that covers a wide range of lamp intensities and travel distances, LightRail 4.20 is great for customers who want that additional control.

LightRail 4.20 will move any grow lights/ any hoods, multiple sizes and weights and is a scalable system where up to three indoor grow lights can move in-line with the use of one Motor. LightRail is just right for any indoor grow equipment set up including indoor grow light systems, seasonal greenhouse lighting, all season greenhouse grow lights, grow tent set ups and commercial grower facilities.

LightRail 4.20 AdjustaDrive Kit comes complete with a variable speed LightRail 4.0 AdjustaDrive Motor, a two-piece 2 meter (6 ft 6 in) Rail, an Add A Lamp Kit with another 2-meter Rail, Push/Pull Rod, Auxiliary Trolley, instructions and hardware for moving two lights with the enclosed motor.

  • Easy Installation
  • Solidly Made in the USA
  • 2 Year Manufacturer Warranty
  • Eco Friendly Efficiency Product
  • Scalable and Customizable
  • Runs 120 VAC or 240 VAC
  • Runs on Only 9 Watts
  • Instrument Grade Drive Motor
  • Electrical Certifications (CE)
  • Flammability Ratings (UL 5 VB)

Did you Know... Stationary lighting only shines light on the parts of leaves that are directly beneath it, which can cause limited growth and even damage to the plant similar to sunburn. LightRail indoor grow kits solves this problem by moving over the tops of plants, so that the leaves get light at different angles, activating photosynthesis on parts of the plant that would not normally receive much light with a stationary system.

With stationary indoor grow lights, light energy can also be lost because it cannot diversify itself in order to allow your plant to absorb it at the optimum levels. LightRail shines the correct intensity of light on the leaves for 40% of the photoperiod. This allows the plant to reach optimum Leaf Area Index, the most important factor in increasing yield. Also, by moving your indoor grow light, you can now safely get your grow light system closer to your plants for a more efficient use of the wattage available.

LightRail is the single best way to maximize your light set up. Solidly made in the USA since 1986, LightRail 4.0 and is the growers light mover of choice with an instrument grade drive motor that runs on only 9 watts, digital control circuitry, heavy duty ball bearing carrier wheels and a self-clutch drive design with automatic traction control. Manufactured by Gualala Robotics, LightRail has all the electrical certifications (C CSA US or CE) and flammability ratings (UL 5 VB) and is RoHS compliant. LightRail has a two year manufacturer warranty, runs at a safe 28-42 degrees C with a flame retardant electrical enclosure, as it should be, while imitator light movers run as hot as 107 C (170 F) and their electrical enclosures are likely made of flammable plastic. Without quality, there is no value and if it does not say Gualala Robotics, it is not a LightRail.


Brand Light Rail
SKU 710142
Weight (lb.) 10.8
Height (in.) 5.5
Width (in.) 42
Length (in.) 6.5
Warranty 2 year
Free Shipping No
Weight Capacity Up to 75 Lbs.

LightRail 4.20 AdjustaDrive Kit Questions & Answers

How much weight will LightRail Carrry?

The answer to this is twofold. For LightRail 3.5 and 4.0 let’s first talk about the strength of the rail then we’ll talk about LightRail Drive Motor that moves your grow light. If only mounted by the mounting holes at the ends of the rail, the rail will begin to deflect when 35 lbs. (16kg) is in the middle of the rail. If all the rails mounting holes are used when mounting the rail first to a board, and then the board to the structure above your garden, it will easily handle 75 lbs.

Next, the LightRail 3.5 or 4.0 Drive Motor can easily move 75 lbs (34kg). However, more weight equals accelerated wear and tear mostly on the Trolley Wheels. LightRail's testing has shown that the Trolley Wheels on a LightRail 3.5 or 4.0 Drive Motor will last between 12 and 16 months moving a load of 35 pounds (16kg). Their Extreme Duty Trolley Wheels have a lifetime warranty at 60 pounds per set of four. Plus they have very low drag co-efficiency so they are the best choice for moving heavy or multiple reflectors

LightRail 5.0 will hold and move 100 lbs (45kgs) per cross arm (limit 3 cross arms) but again, needs to be mounted to a structure properly. Note: The greater the weight, the more frequently trolley wheels will need to be replaced. Trolley wheel kits are available for LightRail 3.5, 4.0 and the older 3.0, but for LightRail 5.0 needs LightRail must be contacted for any serviceable work and they make that easy and with a quick turnaround time.

Shipping Info:

Ships Via FedEx/UPS

Questions about this product?
Contact us for advice or more details. Our product specialists are here to help.
Email an Expert
Report an issue on this page

Why Shop with Hydrobuilder?
We offer the best service and support in the industry. Your complete satisfaction is our goal.