Nova 800W R5W

What the Nova 800W R5W Is

The Flexstar Nova 800W R5W is a commercial-grade LED toplight in Flexstar's Nova High Bay series. It outputs 2,240 µmol/s PPF at a verified efficacy of 2.8 µmol/J — performance that puts it squarely in the same tier as double-ended HPS at 800–1000W, without the radiant heat load or lamp replacement cycle.

The R5W designation indicates a full-spectrum configuration tuned for the complete grow cycle: vegetative establishment through late-stage flowering. The compact form factor — 23.1" long by 12.5" wide, 3.2" in depth — keeps shadows minimal in dense multi-fixture canopy arrays. At 20.9 lb, it's manageable for single-person ceiling installation with standard hardware.

Flexstar rates the Nova to operate in ambient environments up to 40°C, backed by a modular thermal convective design that moves heat away from the board passively. That matters in sealed rooms running elevated CO2 and tighter temp tolerances — you're not adding a secondary heat source that forces HVAC to compensate.

Who This Fixture Is Built For

The Nova 800W is sized for operators running commercial flowering rooms or greenhouse bays who need a direct swap for existing 800W or 1000W HPS infrastructure. If your facility was built around HPS spacing — typically one fixture per 4×4 ft or 5×5 ft canopy zone depending on target PPFD — the Nova drops into those positions without a full layout redesign.

It's equally relevant for new builds that want to start on LED without over-engineering a custom fixture layout. The wide voltage input range (120–277V) means it runs on both standard and three-phase commercial circuits without additional drivers or step-down hardware. Operators building out canopy on tight electrical budgets can run these across mixed-voltage distribution panels without penalty.

For greenhouse operators, the IP66 rating matters: wash-down environments, humidity spikes, condensation from temperature swings at lights-off — all handled. You're not voiding your warranty because the room gets wet.

Key Technical Features

Adjustable light distribution is one of the Nova's practical differentiators. The fixture's optics let you tune the throw angle, which means edge-of-room and perimeter fixtures can be directed inward rather than wasting photons on walls or walkways. That directly improves uniformity across the canopy without adding more fixtures.

Controllability is built in: the Nova network supports simultaneous control of up to 160 fixtures. For a facility running 80–160 lights, that means full-room dimming from a single controller input — no zone-splitting, no secondary relay boards. Sunrise/sunset ramping, photoperiod scheduling, and intensity curves can be applied across the entire room or in sub-groups depending on controller configuration.

The modular thermal convective design keeps the fixture passively cooled — no internal fans, no moving parts to service or fail. Combined with the 5-year warranty, this is a low-maintenance fixture suited for facilities that run lights 18/6 in veg or 12/12 in flower without downtime windows for lamp swaps.

How It Fits a Commercial Build

In a standard flowering room layout, the Nova 800W R5W is typically mounted at 18–24 inches above canopy, covering a 4×4 to 5×5 ft target zone per fixture depending on target PPFD. At the 2,240 µmol/s output, CO2-enriched rooms targeting 1,200+ µmol/m²/s at canopy can run tighter hanging heights; ambient-CO2 programs can spread the fixture over a wider zone and still hit 800–1,000 µmol/m²/s.

The fixture pairs naturally with Flexstar's broader Nova line — the 1200W variant shares the same form factor and control architecture, allowing facilities to mix wattages across the same controller network as canopy zones vary. If you're building out in phases, you're not locked into a single power class.

HSC supplies the Flexstar Nova line nationally to licensed cannabis and hemp operators. Whether you're speccing a single room or a multi-room facility, request a quote to get current lead time, volume pricing, and configuration support for your build.