






Flexstar - Redline SpecTune
Brand: Flexstar
The Flexstar Redline SpecTune is the tunable-spectrum flagship of the Redline series — built for cultivators who need scientific control over plant responses. Breeders, R&D facilities, craft cultivators, and high-margin commercial rooms use SpecTune to dial spectrum recipes per strain, optimize terpene and cannabinoid profiles, and run repeatable growth protocols.
SpecTune sits on the same patented Liquid Optics System (LOS) platform as the standard Redline, so you get the same industry-leading 3.2 μmol/J efficiency, IP66 sealing, and 54,000-hour lifespan — plus four independently controllable channels (White, Deep Red, Far-Red, UV) for true spectral command.
SpecTune Technology — 4-Channel Independent Control
- Main Spectrum (White + Deep Red): dynamically tunable from vegetative through flowering
- Far-Red channel: 0% / 25%–100% — accelerates flowering, shortens cycles, enhances flower density
- UV channel: 0% / 25%–100% — boosts THC and terpene production for premium-quality flower
- RS485 + 0–10V control: integrates with controllers and centralized data systems
- Constant-power dimming: spectrum integrity preserved across all dim levels
Why Redline SpecTune?
- 3.2 μmol/J PPE on main spectrum, 3.1 μmol/J BPE on broadband spectrum
- Liquid Optics System — 99% optical efficiency, no yellowing, sealed light bars
- Bidirectional silicone-gel cooling reduces LED temps by 9–15°F
- IP66 rated — sealed against dust, humidity, pesticide mist, and wash-down
- 54,000-hour Q90 lifespan — 5-year warranty, no maintenance required
- Recipe-driven programming for repeatable, science-backed cultivation
- Free power cord included (specify 120V / 240V / 277V at checkout)
- Backed by 15+ years of Flexstar manufacturing experience
SpecTune Model Specifications
| Model | Total Power | Channel Breakdown | Bars | Coverage | PPF (400–700nm) | BPF (380–800nm) |
|---|---|---|---|---|---|---|
| 760W ST | 760W | Main 645W + FR 75W + UV 40W | 6-bar | 4 × 4 ft | 2060 μmol/s | 2320 μmol/s |
| 1000W ST | 1000W | Main 840W + FR 105W + UV 55W | 8-bar | 4 × 4 ft | 2680 μmol/s | 2900 μmol/s |
| 1000W ST XL | 1000W | Main 840W + FR 105W + UV 55W | 8-bar | 4 × 6 ft | 2680 μmol/s | 2900 μmol/s |
| 1200W ST XL | 1200W | Main 1000W + FR 140W + UV 60W | 10-bar | 4 × 6 ft | 3200 μmol/s | 3480 μmol/s |
Independent UV & Far-Red — Why It Matters
UV Light: Boosts THC and terpene production. Trigger plant defense responses to increase potency and overall crop value.
Far-Red Light: Accelerates flowering via the Emerson effect, shortens growth cycles, and enhances flower density for bigger, better yields.
Independent 0%/25%–100% control of each channel means you can run a 4-channel spectrum recipe per strain, per stage, with the controller dialing UV and Far-Red without affecting main-channel output.
Built for Commercial Grow Rooms
LOS-sealed light bars protect diodes from direct hose sprays, pesticide mist, and harsh cleaning chemicals. Passive cooling — no fans, no airflow noise, no dust accumulation — maintains optimal junction temps up to 35°C / 95°F. Wipe-and-go cleaning means you can sanitize and maintain the grow room without interrupting the cycle.
Shared Specs
- Input voltage: 120–277V
- Lifetime: 54,000 hours (Q90 @ 104°F)
- Warranty: 5 years
- Ingress protection: IP66
- Control: RS485 + 0–10V, controller-compatible
- Cooling: Passive, silicone-gel bidirectional
- Mounting: Foldable frame
- Power cord: 120V / 240V / 277V, included free
Need a fixed full-spectrum fixture instead? See the Flexstar Redline — same LOS platform, optimized full spectrum, no spectral tuning required.
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