DS120S
Low-profile bar light for vertical farming racks
Factory-direct pricing. Send your room size and target PPFD for a layout recommendation with the quote.
- Flowering footprint
- 2ft x 4ft
- Ingress protection
- IP65
What we measured
The three artifacts a lighting plan is actually drawn from. Every figure below comes off our own spec sheet; where we do not have a measurement, the page says so instead of estimating.
Spectrum distribution
Full spectrum - blue peak near 450nm, broad 500-620nm, strong deep-red peak near 660nm (spectrum graph, no far-red or UV peak visible).
Download the full spec sheet (PDF)What the DS120S is for
A linear bar built for the gap between tiers, in 100W and 150W versions. At 1070 mm long, 80 mm wide and 100 mm deep, the DS120S covers a 2ft × 4ft flowering area without eating the vertical clearance a panel fixture needs. The default choice for multi-tier racks, propagation shelving and any room where rack pitch is the constraint.
What you get
- 100W or 150W, 336 diodes: Samsung LM281B full spectrum plus 660nm deep red.
- Low profile: 1070 × 80 × 100 mm, 2 kg. Mounts tight to the tier above.
- 2ft × 4ft flowering, 3ft × 5ft vegetative coverage on a 120° beam.
- Full spectrum with a strong deep-red peak near 660nm and a defined blue peak near 450nm.
- 0-100% dimmable with external control available; integrates with the RJ12 group-control scheme.
- IP65, UL-listed driver, AC 100-240V, power factor at or above 0.95, passive cooling.
- Five-year standard warranty, L90 beyond 50,000 hours.
What it looks like in use
On the rack
Installed in a working commercial grow. Rated coverage: Flower 2ft x 4ft; Veg 3ft x 5ft.
Specifications
- Factory model
- LH-DS120S
- Power
- 100 / 150 W
- Spectrum
- Full spectrum (Samsung LM281B) + 660nm deep red
- Control channels
- 1
- Coverage
- Flower 2ft x 4ft; Veg 3ft x 5ft
- Input voltage
- AC 100-240V
- Dimming
- Single channel, full spectrum
- Dimensions
- 1070 x 80 x 100 mm
- Weight
- 2 kg
- IP rating
- IP65
- Rated lifetime
- 50,000 h
- Warranty
- 5 years
Engineering data
- Replaces
- 120W HPS/MH
- Diode brands
- Samsung LM281B + 660nm
- Diode count
- 336 pcs
- Beam angle
- 120 deg
- Mounting height
- 6-24 in
- Thermal management
- Passive
- Max ambient
- 40 °C
- Power factor
- ≥ 0.95
- Driver
- UL-listed driver
- Packing
- 1 pc/carton, 1100 x 100 x 80 mm, 2.3 kg gross
PPFD distribution maps available with your quote.
Before you spec it
How many bars per tier?
Work from the 2ft × 4ft footprint. A 4ft × 8ft tray takes four bars on a 2ft pitch for even coverage; tighter pitch raises intensity and uniformity together. Send tray dimensions, tier pitch and a target PPFD and we will lay it out.
DS120S or DS400D?
Different jobs. The DS120S is a 100W or 150W bar for tiers stacked at close pitch. The DS400D is a 400W bar in a similar 42-inch length — 1,120 µmol/s — designed as a single-tier top light. If you are lighting a rack, take the DS120S; if you are lighting a floor, take the DS400D.
What tier pitch does it need?
The fixture itself is under 4 inches deep, so the mounting height above canopy is set by your intensity target rather than by the fixture. Vertical racks commonly hang bars 8-12 inches above the tray; closer requires more bars at lower output for uniformity.
Can I run it from the GC001?
It is dimmable and supports external control, so it is designed to sit on the same scheme. Confirm the connector and channel arrangement with us for your specific build before ordering the GC001 — the bar range's control interface is not documented to the same level as the TF/TR/DR/SF fixtures.
