Sun System RS 1850 720w LED Grow Light - Foldable, Gavita-Ready Fixture
Best for: Growers who want a high-output foldable LED that plugs straight into a Gavita-controlled setup without extra adapters.
Our thoughts
The Gavita compatibility is the standout feature here - if you're already running a Gavita Master or e-Series Controller, this fixture slots into that ecosystem without any workaround cabling. On its own with the manual dimmer it's still a strong, straightforward fixture, but it's really built for growers who want networked control over multiple lights.
The Sun System RS 1850 is a 720W foldable LED grow light rated at 1850 μmol/s PPF, using top-bin Sun System diodes across a full-spectrum output. The rail design folds flat for easier shipping and handling, and it comes complete with hanging cables and a power cable, so there's no need to source extra cabling or adapters to get it running.
Out of the box, brightness can be adjusted manually from 50% to 100% using the digital dimming button on the fixture. Connect it to a Gavita Master Controller or e-Series Controller and you get finer control, adjusting output in 10W increments across a wider 50% to 115% range, plus the ability to coordinate sunrise/sunset ramping and multiple fixtures from one controller.
How it compares
It sits in the higher-output commercial LED bracket alongside other 700W-plus fixtures.
- Native Gavita Master/e-Series Controller compatibility out of the box, which fixtures from other brands such as Maxibright's Daylight LED range typically don't offer without a separate control system
- Higher rated PPF than most 600-650W LED fixtures on the market, reflecting both the higher wattage and diode efficiency
- Foldable rail design for easier transport, similar in concept to other rail-style commercial LEDs like Lumatek's Zeus range
A strong choice if you're building out a Gavita-controlled room, less of a clear win if you've no plans to add controller-level control.
Usage guidance
Basic setup
Unfold the rails, hang using the supplied cables, and connect the included power cable - no additional adapters are needed.
Manual dimming
Use the digital dimming button on the fixture to adjust output between 50% and 100% without any external controller.
Controller integration
Connect to a Gavita Master Controller or e-Series Controller (sold separately) to unlock the extended 50% to 115% range in 10W increments and coordinate multiple fixtures together.
Positioning
Hang at a height suited to a 720W fixture's canopy coverage and adjust based on plant response and canopy temperature.
Technical specifications
- Power draw: 720W
- PPF output: 1850 μmol/s
- Efficacy: Approx. 2.5 μmol/J
- Dimming (standalone): 50% to 100% via digital button
- Dimming (with Gavita controller): 50% to 115% in 10W increments
- Controller compatibility: Gavita Master Controller / e-Series Controller (sold separately)
- Design: Foldable rail fixture
- Included: Hanging cables, power cable
Who this is for
- Growers already running or planning a Gavita-controlled lighting setup
- Anyone wanting a single high-output fixture rather than multiple smaller lights
- Growers who want sunrise/sunset dimming and multi-fixture coordination down the line
Best suited to serious indoor setups rather than a small single-tent grow.
Our take
This is a proper commercial-grade fixture, and the Gavita controller compatibility is what sets it apart from a lot of similarly priced LEDs. Even running it standalone with the manual dimmer, the PPF output holds up well against other 700W-class lights.
Worth picking up if you want a fixture that can grow into a bigger, controller-managed setup later.
