VIVOSUN LumaRay 100W Under Canopy Grow Light | Full Spectrum, Smart Dimmable & SGS Compatible

Product Introduction

The VIVOSUN LumaRay Under Canopy 100W Grow Light is a specialised supplemental LED lighting system designed to deliver additional light to the middle and lower areas of dense indoor plant canopies. Rather than replacing the main overhead grow light, the LumaRay is positioned below or alongside the canopy to illuminate areas where top lighting may be partially blocked by upper foliage.

Rated at 100W, the LumaRay uses a long, slim fixture measuring approximately 39.4 x 2.5 x 2.8 inches, or around 100 x 6.4 x 7.1 cm. Its low-profile design makes it suitable for installation inside grow tents, indoor grow rooms and greenhouses without occupying significant usable growing space.

The fixture produces a red-enhanced full spectrum, with VIVOSUN specifying approximately 60% red light. A prism optical lens helps distribute the light more evenly while maintaining high transmission and reducing glare. With a specified efficiency of 2.38 µmol/J, smart dimming and compatibility with the VIVOSUN Smart Grow System, the LumaRay provides a flexible way to supplement an existing indoor grow lighting setup.

Smart GrowHub & SGS Control

The VIVOSUN LumaRay Under Canopy Light is compatible with the VIVOSUN Smart Grow System (SGS), allowing growers to integrate supplemental under-canopy lighting with compatible VIVOSUN smart controllers.

The current product listing supports smart control through the GrowHub E42A+ or VIVOSUN E25 controller, both sold separately. When connected to a compatible controller, the light can be managed remotely through the VIVOSUN App.

Growers can remotely switch the light on or off, adjust output and coordinate the fixture with other compatible SGS equipment. VIVOSUN also supports grow recipes through the App, allowing supplemental lighting to be incorporated into a wider automated indoor growing setup.

Manual and GrowHub control provides preset dimming levels of 25%, 50%, 75% and 100%, plus OFF, while the VIVOSUN App supports adjustable output from 25% to 100%, plus OFF.

SGS-Compatible Features

• VIVOSUN Smart Grow System compatibility
• GrowHub E42A+ compatibility
• VIVOSUN E25 controller compatibility
• VIVOSUN App control
• Remote on/off control
• Remote light intensity adjustment
• 25%, 50%, 75% and 100% manual/GrowHub dimming
• 25–100% VIVOSUN App dimming
• Grow recipe integration
• Synchronisation with compatible SGS equipment
• Daisy-chain connectivity
• Remote lighting schedules through compatible smart control

Important: A GrowHub E42A+ or E25 controller is not included with the LumaRay Under Canopy Light and must be purchased separately.

Temperature, humidity and VPD monitoring hardware is also not included with this standalone grow light.

LumaRay 100W Full-Spectrum Under Canopy Grow Light

Lighting is supplied by the VIVOSUN LumaRay Under Canopy 100W / VSL-LRUC100, a long-format supplemental LED grow light specifically designed to illuminate middle and lower canopy areas.

The fixture uses a red-enhanced full spectrum, with approximately 60% red light according to VIVOSUN. This spectrum is designed to complement the main overhead grow light and provide additional usable illumination to plant areas that may otherwise remain shaded beneath dense upper foliage.

VIVOSUN uses a prism optical lens to help distribute light evenly along the fixture while maintaining high transmission and reducing glare.

The exact 100W model has a specified lighting efficiency of 2.38 µmol/J.

VIVOSUN does not publish a specific PPFD measurement for the exact VSL-LRUC100 on the current retail specification table, so an unsupported PPFD figure should not be added to the product listing.

Manual or GrowHub dimming provides 25%, 50%, 75% and 100% output plus OFF, while the VIVOSUN App allows adjustment from 25% to 100%, plus OFF through a compatible controller.

The fixture carries an IP54 protection rating, helping provide resistance against dust and splashing water, and VIVOSUN specifies a rated lifespan of approximately 25,000 hours.

LumaRay Under Canopy 100W Specifications

Model: VIVOSUN LumaRay Under Canopy / VSL-LRUC100
Power: 100W
Dimensions: 39.4 x 2.5 x 2.8 in
Approx. Metric Dimensions: 100 x 6.4 x 7.1 cm
Weight: 3.8 lb / approx. 1.72 kg
Power Cord Length: 8.3 ft / approx. 2.5 m
Spectrum: Red-enhanced full spectrum
Red Spectrum Ratio: Approx. 60% red
Efficiency: 2.38 µmol/J
PPFD: Not specified on the current VIVOSUN retail specification table
Manual/GrowHub Dimming: 25% / 50% / 75% / 100% / OFF
VIVOSUN App Dimming: 25–100% / OFF
Input Voltage: 120–240VAC
Frequency: 50–60Hz
Maximum Input Current: 1A
Protection Rating: IP54
Rated Lifespan: 25,000 hours
Maximum Daisy Chain: Up to 6 compatible units

Grow Tent Compatibility & Installation

The LumaRay Under Canopy Light is designed primarily as supplemental lighting for grow tents, indoor grow rooms and greenhouses rather than as a standalone overhead grow light.

Its long, narrow profile allows it to be positioned beneath or alongside the plant canopy without taking up substantial growing space.

VIVOSUN provides multiple installation options. The fixture can be configured as a free-standing under-canopy light using the included support legs, with three adjustable height positions available to suit different plant and container arrangements.

It can also be mounted or suspended using the included brackets, hooks and rope hangers. The current retail listing additionally describes magnetic tent-wall mounting, providing growers with flexibility when positioning the fixture inside a compatible grow tent.

Because under-canopy lighting requirements depend heavily on canopy size, density and the primary overhead light, VIVOSUN does not specify a conventional square-foot coverage rating for this fixture in the same way it does for its main overhead grow lights.

Grow tent not included.

Supplemental Under-Canopy Lighting

Unlike a conventional overhead LED grow light, the LumaRay is designed specifically to direct additional light towards the middle and lower sections of the plant canopy.

Dense upper foliage can block a portion of the light produced by the primary fixture, leaving lower leaves and growth sites with less direct illumination. Positioning supplemental lighting beneath the canopy provides another lighting angle and can create a more even distribution of light throughout the plant structure.

The LumaRay's red-enhanced full spectrum is designed to complement the main overhead grow light, while the prism optical lens helps spread its output along the length of the fixture.

Because the LumaRay is a supplemental light rather than an environmental-control product, it does not contain an integrated circulation fan or extraction system.

VIVOSUN specifies an operating temperature range of -20°C to 35°C, and recommends mechanical ventilation or cooling where necessary to keep the growing environment below 35°C during operation.

Supplemental Lighting Details

Lighting Type: Supplemental under-canopy LED grow light
Power: 100W
Fixture Length: Approx. 100 cm / 39.4 in
Spectrum: Red-enhanced full spectrum
Red Content: Approx. 60%
Efficiency: 2.38 µmol/J
Optical Design: Prism optical lens
Integrated Circulation Fan: No
Inline Extraction Fan: Not included
Carbon Filter: Not included
Ventilation Ducting: Not included
Operating Temperature: -20°C to 35°C
Primary Overhead Grow Light: Not included

The LumaRay is intended to supplement an appropriately sized primary grow light, rather than replace the main overhead lighting system.

What's Included?

According to VIVOSUN's current product documentation for the VSL-LRUC100 configuration, the package includes:

• 1 x VIVOSUN LumaRay UC 100W Under Canopy Light
• 4 x Adjustable Support Legs
• 2 x Bracket Grippers
• 2 x Hooks
• 2 x Rope Hangers
• 1 x Type-C Connection Cable – approx. 3.28 ft / 1 m
• 1 x Type-C to RJ11 Cable – approx. 9.84 ft / 3 m

Not Included

• GrowHub E42A+ controller
• VIVOSUN E25 controller
• Grow tent
• Primary overhead LED grow light
• Inline extraction fan
• Circulation fan
• Carbon filter
• Ventilation ducting
• Temperature/humidity sensor probe

Key Specifications

Complete Smart Supplemental Indoor Grow Lighting

The VIVOSUN LumaRay Under Canopy 100W Grow Light is suited to indoor gardeners who already have a primary overhead LED grow light and want to provide additional illumination to the middle and lower sections of a dense plant canopy.

Its 100W output, red-enhanced full spectrum, 2.38 µmol/J efficiency and long 100 cm fixture design provide a targeted supplemental lighting solution that can be positioned beneath or alongside plants where overhead light penetration is reduced.

Flexible installation options allow the fixture to be used free-standing at one of three adjustable heights or mounted within the growing space. Daisy-chain support for up to six compatible LumaRay units also makes it easier to expand supplemental lighting across larger indoor growing setups.

Growers who want additional automation can connect the fixture to a compatible VIVOSUN GrowHub E42A+ or E25 controller. This provides VIVOSUN App control for remote on/off operation, adjustable dimming, SGS synchronisation and grow recipe integration.

For indoor growers looking to complement their primary lighting rather than replace it, the LumaRay Under Canopy 100W provides a flexible combination of targeted full-spectrum lighting, adjustable intensity, smart-control compatibility and multiple installation options.

Available in Australia from The Hippie House.