Stop Leaving Money in the Shade. Traditional top lighting reaches the upper canopy, but lower bud sites often sit in a "light desert." Slim bars mounted below the canopy that shine upward into the bud sites your top lights can't reach, lifting lower-canopy flower quality and cutting batch-to-batch variability by over 50% in controlled trials. Four cover variants, 4Ft and 8Ft, 0–10V dimming and RJ12 daisy-chain on one platform. Activate Your Hidden Potential.
Controlled medicinal-cannabis trials compared top lighting alone against subcanopy (SCL) and inter-canopy (ICL) supplemental lighting. Both raised yield and, more importantly for processors, cut batch-to-batch variability by over 50%.
Source: peer-reviewed medicinal-cannabis trial, 12 plants/m², top-light PPFD 700 µmol·m⁻²·s⁻¹. Full citation and methodology in the under-canopy lighting guide.
| Power | 120W (4Ft) · 240W (8Ft) |
| Beam | 120° |
| Spectrum | Full spectrum with Deep Red (customizable) |
| PPE | 2.8–3.0 µmol/J |
| Power | 150W (4Ft) · 300W (8Ft) |
| Beam | 270° upward wrap: lights pot walls & lower branches |
| Spectrum | Full spectrum with Deep Red (customizable) |
| Control | 0–10V dimming, RJ12 daisy-chain, most controllers |
| Power | 120W (4Ft) |
| Build | Anti-corrosion glass cover for high-humidity rooms |
| Spectrum | Full spectrum with Deep Red (customizable) |
| Control | 0–10V dimming, RJ12 daisy-chain |
| Power | 120W–300W range (4Ft & 8Ft builds) |
| Emission | Three-face output reaching row sides as well as the canopy below |
| Spectrum | Full spectrum with Deep Red (customizable) |
| Control | 0–10V dimming, RJ12 daisy-chain, most controllers |
| Includes | 1× 1000W top light + 2× 120W under-canopy lights |
| PPF / PPE | 3,596 µmol/s · 2.9 µmol/J |
| Voltage | AC 100–277V; 347V–480V optional |
| Warranty | 3–5 years (optional, model-dependent) |
A U.S. cultivator replaced degraded 2022 LED top fixtures across 5 × 1200 sq ft rooms with 200× 4×6Ft 1300W dual-channel top lights + 600× 120W under-canopy lights, fully activating every bud site from top to bottom.
All four variants run on the same 0–10V / RJ12 control platform, so mixing styles in one room never means mixing control systems. Pick your situation, and the quote form takes two minutes.
| Your setup | Start here | Also consider |
| First trial on a tight budget | Basic PC Cover 120W–240W | Advanced 270° 150W–300W |
| Wide pots, walls and lower branches to reach | Advanced 270° 150W–300W | |
| High-humidity or corrosive rooms | Pro Glass Cover 120W | |
| Row sides as well as below the canopy | 3-Sided Illumination 120W–300W | |
| One SKU for the whole room | Grow Light Set 1240W | |
| Upgrading an aging under-canopy fleet | Any variant: same 0–10V / RJ12 platform |
Submit room specs: row length, pot layout, current top-light PPFD and target grades.
Bar layout plan: 4Ft / 8Ft mix, variant selection, mounting height and indicative pricing.
Sample verification: evaluation bars ship in 1–5 days with measured PPFD data.
Bulk factory fulfillment: volume runs in 15–35 days with full QC documentation.
Shaded lower bud sites receive under 20% of top-light intensity: they stay airy and grade as popcorn.
120W–300W slim bars mounted below the canopy lift PPFD at lower sites back into productive range.
More weight lands in top-shelf grades; A-grade ratio and trichome consistency improve across batches.
At commercial pricing, fixture cost is typically recovered within one to two flowering cycles.
Send room dimensions, row count and current top-light PPFD, and we'll return a fixture recommendation and lighting plan.
