TotalGrow Lumyre 860W LED Grow Light | 3-Channel Spectrum Control

The Lumyre 3C 860 features three independent channels controlled via onboard dials or optional RJ12 connectivity. The primary White + Blue + Red channel provides your base grow spectrum. Add UVA during flowering to enhance chemical production and quality characteristics. Use Far-Red to promote expansion and biomass during vegetative growth, or apply it as an end-of-day treatment (15-30 minutes after main lights off) to trigger beneficial flowering responses.

The Lullaby Effect refers to end-of-day Far-Red treatments that manipulate phytochrome responses to simulate natural sunset conditions. By applying Far-Red light for 15-30 minutes after your main lights turn off, you can accelerate the transition to the night phase, potentially reducing vegetative time and improving flowering uniformity. This technique mimics the spectral shift plants experience at dusk in nature.

UVA light (320-400nm) triggers controlled stress responses that enhance secondary metabolite production, including terpenes, flavonoids, and cannabinoids. This strategic stress can increase trichome density, improve potency, and enhance aromatic profiles. Start with low UVA intensity during early flowering and gradually increase as plants acclimate to avoid excessive stress that could reduce yields.

Yes, the Lumyre 3C 860 excels in both stages. For vegetative growth, use the primary spectrum with increased Far-Red to promote expansion and biomass over a 5x5 ft or larger area. During flowering, focus intensity over a 4x4 ft area, add strategic UVA for quality enhancement, and consider Far-Red end-of-day treatments for flowering control. The independent channel control lets you optimize for each growth phase. For specialized applications like early propagation, dedicated fixtures for cloning and seedling stages are also available.

Choose 120V for standard North American residential electrical systems. Select 240V if you have access to 240V outlets and plan to daisy-chain multiple fixtures (up to 3 lights on 240V or 4 lights on 277V). Both voltage options deliver identical light output and performance—the choice depends on your facility's electrical infrastructure and expansion plans. If your power needs or coverage area differ, you might also consider the 720W MH Lumit for slightly smaller spaces or the more powerful Solark KC 1000W for larger commercial setups.

The RJ12 dimming cable is only needed if you want to integrate the fixture with an external controller for automated 0-10V dimming of all three channels. If you prefer manual control using the three onboard dials, select the "None" dimmer option. The RJ12 cable enables integration with environmental controllers and timers for automated spectrum recipes and sunrise/sunset simulations.

Typical mounting heights range from 6-18 inches above the canopy depending on growth stage and desired intensity. Start higher (12-18 inches) during early vegetative growth and gradually lower as plants mature and can handle higher PPFD levels. During flowering, mounting at 6-12 inches can deliver the 1200-1500 PPFD needed to maximize yields while the eight-bar design ensures excellent uniformity. For more details on this topic, our guide explains the science of grow light distance for boosting plant health.

Yes, when using optional daisy-chain power cords (sold separately), you can connect up to 3 fixtures on 240V or 4 fixtures on 277V. This allows you to cover multiple grow zones with simplified power distribution. Note that spectral control remains independent on each fixture unless connected to a central controller via the RJ12 interface. For advanced multi-light setups, you can also supplement coverage with dedicated under canopy lighting to target lower growth.