VIVOSUN LumaRay LED Grow Light Bars 16" 4-Bar Full-Spectrum Side Lighting — Red-Enhanced, Dimmable, Daisy-Chainable

VIVOSUN LumaRay 16" 4-Bar is a full-spectrum LED side-lighting kit that boosts lower and side canopy light for more uniform growth and higher yields.

These four compact 16-inch LED bars are designed to supplement overhead fixtures by delivering targeted light to the lower leaves and inner canopy where top lights struggle to penetrate. Built with a red-enhanced full spectrum and efficient gallium nitride electronics, the kit offers dimming, daisy-chaining, and optional smart-controller compatibility so you can customize intensity and timing without rearranging your whole setup.

How does side lighting improve canopy development?

Side lighting reaches shaded leaves and short lateral branches that overhead lights miss, promoting more even photosynthesis across the plant. By illuminating the inner canopy, these bars reduce stretch and encourage fuller, bushier growth with more bud sites or fruiting nodes.

• Targets lower foliage to reduce shading and leaf senescence
• Enhances light penetration for denser, more uniform canopies
• Supports branching and development of inner bud sites

What spectrum and light output can I expect from the LumaRay bars?

The LumaRay design emphasizes a sun-like full spectrum with an increased red component (about 60% in the 600–700 nm range) to support flowering and fruiting stages. Prism-style lenses increase light transmittance while minimizing glare, and the bars provide adjustable intensity so you can fine-tune output for each growth phase.

• Red-enhanced full spectrum for flowering/fruiting support
• Prism optical lens for even distribution and reduced glare
• 0–100% dimming to match vegetative and flowering needs

How easy is installation and integration with other gear?

Installation is straightforward: mount on tent poles or attach to walls with magnetic clamps, and use the included hardware for quick setup. You can daisy-chain these bars using RJ11 ports and pair them with VIVOSUN SGS controllers (sold separately) for app-based scheduling, remote on/off, and integrated device management.

• Magnetic clamps and pole mounts included for tool-free setup
• Daisy-chain RJ11 compatibility for expanded arrays
• Works with SGS E42A/E25 controllers for remote control and recipes

What are the build quality and electrical features?

The bars use a gallium nitride power supply for compact, efficient performance and long-term reliability. The durable housing and easy-to-clean lenses are designed for indoor grow environments, while compatibility with SGS controllers gives advanced users fine-grained electronic control.

• Gallium nitride supply for efficient thermal performance
• Durable housing and prism lenses for high transmittance
• Includes all mounting accessories and connectors for immediate use

Who is this for? Growers using tents or compact indoor spaces who want to increase light coverage without adding bulk will benefit most. Hobbyists and small commercial cultivators looking to improve lower-canopy light, reduce stretch, and gain remote control options—especially those already using or planning to use VIVOSUN SGS controllers—will find this 4-bar kit a practical, space-efficient upgrade.