FLEXSTAR Redline 800W XL

What the Redline 800W XL Is

The Flexstar Redline 800W XL is the large-footprint variant of Flexstar's flagship Redline series — an 8-bar fixture sized for a 4×6 ft canopy zone rather than the standard 4×4 ft coverage of the 800W base model. It runs at 800W input power and hits 3.2 µmol/J photon efficacy with up to 2,560 µmol/s PPF, making it a credible replacement for 1,000W DE-HPS in commercial flowering rooms without the radiant heat load or lamp-replacement cadence of a double-ended fixture.

The core technology is Flexstar's patented Liquid Optics System (LOS) — a sealed, silicone-gel optical layer that achieves 99% optical efficiency while simultaneously reducing LED junction temperatures by 9–15°F versus conventional polymer lens designs. Because LOS resists the yellowing and optical drift common to polymer lenses in humid, high-temperature grow environments, the light field stays consistent season after season without degradation. The body is IP66 rated, meaning it is sealed against dust, humidity, pesticide mist, and routine wash-down — standard in any compliant licensed facility.

Who It's For

The 800W XL format addresses a specific problem in commercial room design: operators who want a single fixture per bed without the density penalty of a 4×4 spacing plan. At 4×6 ft per fixture, rooms with 4-foot-wide benches or rolling tables can hang one light per bench section and run fewer homerun circuits than a tighter 4×4 fixture grid requires. That translates to cleaner electrical layouts and fewer fixture SKUs to manage across a multi-bay build.

This fixture is the right choice for large commercial facilities, multi-bay flowering rooms, and licensed operators running CO2-supplemented environments where canopy DLI targets demand sustained output across a full 12-hour photoperiod. It is also well matched to multi-tier vertical racking applications where even PPFD distribution across a wider footprint matters more than peak center-point intensity — the LOS optical design shapes light for canopy uniformity and improved penetration to lower leaves, which is a measurable advantage in high-density rack builds.

Key Features and Technology

Liquid Optics System (LOS): Flexstar's patented optical platform fills each bar's lens chamber with optical-grade silicone gel, achieving 99% optical efficiency. Unlike hollow polymer lenses that collect dust and degrade under UV exposure, the sealed LOS design requires no cleaning of optical surfaces and maintains consistent beam shape across the fixture's rated 54,000-hour Q90 lifespan.

Thermal management: Bidirectional silicone-gel cooling reduces LED junction temperatures by 9–15°F compared to standard passive designs. Lower junction temperature is the primary driver of lumen maintenance over time — keeping diodes cooler is what allows the Q90 rating at 104°F ambient. The fixture uses passive cooling only — no fans means no mechanical failure points and no fan noise in the room.

Dimming and control: The Redline standard model uses 0-10V dimming, compatible with virtually all commercial lighting controllers. Dimming range runs 25–100% while maintaining spectrum integrity — the full-spectrum output does not shift at reduced power levels. The Redline supports daisy-chain control across up to 80 fixtures per channel, which keeps wiring overhead manageable in large-bay deployments.

Certifications: ETL, DLC, CE, and TISI listed. DLC listing is relevant for operators in states or utility programs that include horticultural lighting in rebate calculations — verify current program eligibility with your utility's rebate coordinator.

How It Fits a Commercial Build

In a straight HPS-to-LED conversion, the Redline 800W XL maps cleanly to a 1,000W DE-HPS circuit: same approximate circuit load, wider covered footprint, no supplemental air cooling required at the fixture level, and no lamp inventory to maintain. For new builds or expansions, the 4×6 ft coverage pattern pairs naturally with 4-foot rolling bench systems — one fixture, one bench section, one circuit drop. If your facility is adding canopy through new racking or bench infrastructure, this is the fixture geometry to design around.

For operators evaluating the SpecTune version instead: the Redline standard (this SKU) delivers a fixed full-spectrum output optimized for consistent, high-output vegetative and flowering production. The SpecTune adds independent UV and far-red channels controllable through an RS485+0-10V interface, enabling spectrum recipes that shift through the growth cycle. If your production protocol does not require mid-cycle spectrum steering, the standard Redline at 3.2 µmol/J avoids the added controller complexity. Contact HSC to discuss which variant fits your room design and production workflow.