R2-H 200–480V Inter-Canopy Grow Light Driver

FAHOLD R2-H 200–480V inter-canopy grow light drivers are ultra-narrow non-isolated single-channel constant-current power solutions for commercial inter-lighting, bottom-fill, under-canopy and supplemental horticulture fixtures using high-voltage facility distribution.

Current models cover 60W, 120W, 150W and 200W with a common 180–260Vdc LED output platform. Compatible Type B configurations support 0(1)–10V / PWM control, offline programmable current setting and no-afterglow shutdown, with an optional 12V auxiliary supply for compatible fixture electronics.

The 200–480Vac input range makes this R2-H branch particularly relevant to commercial horticulture facilities using 277V, 347V or 480V-class electrical systems. Compare the four models below by wattage, LED voltage, required current, fixture dimensions and control requirements.

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R2-H 200–480V Inter-Canopy Grow Light LED Drivers

FAHOLD R2-H is an ultra-narrow non-isolated single-channel constant-current LED driver platform developed for inter-canopy, bottom-fill, under-canopy and supplemental horticulture lighting. This high-voltage branch uses 200–480Vac rated input for commercial grow facilities that operate from higher-voltage electrical distribution.

The current range includes 60W, 120W, 150W and 200W models. All four products use a 180–260Vdc output platform for high-voltage LED-string architectures and retain the slim mechanical format required by linear horticulture fixtures installed close to crop canopies.

R2-H should be selected from the complete LED voltage, current and fixture requirements rather than wattage alone. Facility AC input, driver dimensions, control method and the finished luminaire safety architecture must also be evaluated.

Compare R2-H 60W, 120W, 150W and 200W High-Voltage Models

Power ClassRated InputOutput VoltageTypical EfficiencyTypical Fixture Direction
60W200–480Vac180–260Vdc93%Compact inter-canopy and bottom-fill bars
120W200–480Vac180–260Vdc95%Medium-power inter-lighting and under-canopy fixtures
150W200–480Vac180–260Vdc96%Commercial inter-canopy and supplemental lighting
200W200–480Vac180–260Vdc96%Higher-output linear horticulture fixtures

All four products share the same broad AC input and LED output-voltage architecture. Final model selection should therefore focus on the LED load's actual operating current, maximum wattage, thermal design and the available space inside the fixture.

200–480Vac Grow Light Drivers for Commercial Horticulture

The R2-H high-voltage platform accepts 200–480Vac input, allowing compatible fixtures to be integrated into commercial horticulture facilities using higher-voltage lighting infrastructure.

This broad input platform is particularly relevant to large cultivation facilities where individual lighting circuits may operate at nominal 208V, 240V, 277V, 347V or 480V, subject to the electrical design and applicable project requirements.

The AC input range is separate from the LED output specification. R2-H converts the facility AC supply into regulated 180–260Vdc constant-current power for the horticulture LED string.

347V Inter-Canopy LED Drivers

Commercial grow facilities may use 347V-class lighting distribution, particularly where large numbers of luminaires are installed across substantial cultivation areas.

Because this R2-H branch uses a 200–480Vac rated-input platform, compatible models can be considered for inter-canopy and bottom-fill fixtures supplied from 347V-class electrical systems.

Fixture manufacturers should still verify branch-circuit requirements, insulation, wiring, connectors, grounding and certification for the finished horticulture luminaire.

480V Inter-Canopy and Under-Canopy Grow Light Drivers

480V-class electrical distribution can reduce AC current across large commercial lighting installations. R2-H provides compact 60W to 200W driver options for compatible inter-canopy fixtures that need to operate within this type of high-voltage facility infrastructure.

This creates a different use case from high-power 800W–1500W top-light drivers. R2-H allows an individual linear or bottom-fill fixture to remain relatively low in power while still connecting to a commercial high-voltage lighting system.

Always confirm that the selected model and complete fixture are approved for the actual facility voltage and intended installation.

180–260Vdc Constant-Current Output for Horticulture LED Strings

All current R2-H 200–480Vac models use a 180–260Vdc constant-current output platform. This high-voltage LED architecture is designed for long LED strings used in slim linear horticulture luminaires.

Using a higher LED-string voltage allows useful fixture power to be delivered without the very high DC currents required by lower-voltage LED-board architectures. This can influence PCB layout, cable sizing, connector design and fixture power density.

Because the R2-H platform is non-isolated, the LED output must be considered as part of the complete fixture safety architecture. PCB insulation, accessible parts, connectors, wiring, housing construction and certification requirements must all be evaluated.

Ultra-Narrow LED Driver for Inter-Canopy Lighting

Mechanical space is one of the main constraints in inter-canopy and bottom-fill lighting. Fixtures installed inside crop rows often need a narrow cross-section to avoid obstructing plants or reducing usable growing space.

R2-H uses an approximately 44mm-class enclosure width across the current platform. The 60W model measures approximately 150 × 44 × 32mm, while the 120W and 150W models use approximately 170 × 44 × 32mm enclosures.

This narrow mechanical profile allows the driver to be integrated into linear horticulture bars where conventional wider power supplies may be difficult to install.

High-Voltage Drivers for Inter-Canopy Lighting

Inter-canopy fixtures are installed within or between the crop canopy to supplement overhead lighting and improve light distribution through lower plant zones.

The R2-H 200–480Vac platform is particularly relevant when the cultivation facility uses high-voltage AC distribution but the individual inter-lighting fixture remains in the 60W–200W power range.

This allows fixture manufacturers to combine commercial high-voltage facility infrastructure with compact linear horticulture luminaires rather than using a large top-light power platform for every lighting position.

Bottom-Fill Grow Light Driver Platform

Bottom-fill lighting places LED fixtures below the upper plant canopy to improve light reaching lower leaves, fruiting zones and otherwise shaded areas.

These luminaires usually require compact mechanical dimensions and controlled electrical output. R2-H combines a narrow enclosure, programmable constant-current operation and 200–480Vac input for compatible commercial bottom-fill applications.

Under-Canopy Grow Light Drivers for High-Voltage Facilities

Under-canopy lighting creates similar mechanical requirements because fixtures must fit beneath or between crop structures while remaining accessible for installation and maintenance.

The R2-H platform is suitable for compatible under-canopy fixtures using one 180–260Vdc LED load where the building or greenhouse electrical infrastructure operates from a supported 200–480Vac supply.

Programmable 480V Horticulture LED Drivers

Compatible R2-H Type B configurations support offline output-current programming. This allows supported operating parameters to be configured within the electrical limits of the selected driver.

For OEM horticulture-lighting manufacturers, programmable current can help one driver platform support several related fixture variants rather than requiring a unique power supply for every output target.

The programmed current must remain within the permitted voltage, power and thermal operating range of the selected product.

0–10V Dimmable Inter-Canopy Grow Light Drivers

Compatible Type B configurations support 0(1)–10V control for commercial horticulture lighting systems. This enables fixture intensity to respond to crop stage, cultivation schedule, light-level strategy or centralized grow-room control.

Controller signal range, control wiring and driver compatibility should be validated with the actual lighting-control system before production.

PWM Control for Supplemental Horticulture Lighting

R2-H Type B configurations also support PWM control for fixture controllers and cultivation automation systems that provide an appropriate pulse-width modulation signal.

PWM signal voltage, frequency and interface requirements should be verified against the selected driver configuration.

No-Afterglow Shutdown for Crop Dark Periods

The current R2-H platform is designed to avoid visible afterglow after the LED output is switched off. This can be useful in controlled-environment agriculture where cultivation schedules require a defined dark period.

Low-end dimming and complete shutdown behavior should still be validated with the intended controller and LED load as part of fixture testing.

Optional 12V Auxiliary Power

R2-H provides an optional A12 configuration with a 12V / 200mA auxiliary supply for compatible fixture electronics.

This auxiliary output can support suitable low-voltage control electronics or accessories without requiring an additional small internal power supply.

The A12 option is configuration-dependent and should be specified during project development.

Power Factor and Efficiency

Current R2-H high-voltage models list power factor above 0.96. Typical efficiency is approximately 93% for 60W, 95% for 120W and 96% for the current 150W and 200W models.

Driver efficiency is particularly relevant to slim inter-canopy fixtures because electrical losses become heat inside a mechanically restricted luminaire.

Actual efficiency depends on AC input voltage, LED operating point, programmed current and thermal conditions.

DM 6kV / CM 6kV Surge Protection

Current R2-H product documentation specifies differential-mode and common-mode surge protection up to 6kV together with short-circuit, over-current and over-temperature protection.

Driver-level protection should be combined with proper facility grounding, branch-circuit protection and fixture-level electrical design in commercial horticulture installations.

cULus, FCC and Class P Horticulture Driver Platform

Current R2-H 200–480Vac product documentation lists cULus, FCC and Class P certifications for the platform. These certifications can be relevant to OEM horticulture-lighting projects targeting North American commercial installations.

Certification requirements should still be confirmed for the exact ordered configuration and complete finished luminaire because driver-level certification does not automatically certify the complete grow-light fixture.

60W R2-H 200–480V Inter-Canopy Driver

The 60W model provides a 180–260Vdc output window with approximately 0.12–0.30A programmable current capability. Typical efficiency is approximately 93%, and the enclosure measures about 150 × 44 × 32mm.

This is the most compact option in the current high-voltage R2-H range and is suitable for lower-power inter-canopy, bottom-fill and supplemental grow-light bars.

120W R2-H 200–480V Grow Light Driver

The 120W model uses the same 180–260Vdc platform with approximately 0.35–0.66A programmable output-current capability. Typical efficiency is approximately 95%, with an enclosure around 170 × 44 × 32mm.

This model is suitable for medium-power linear horticulture fixtures requiring additional LED output while preserving the ultra-narrow enclosure format.

150W R2-H 480V Inter-Canopy LED Driver

The 150W model provides approximately 0.38–0.75A across the 180–260Vdc output platform and reaches approximately 96% typical efficiency.

It is relevant to commercial inter-canopy and bottom-fill fixtures requiring higher output while retaining programmable control and a narrow linear enclosure.

200W R2-H High-Voltage Grow Light Driver

The 200W model is the highest-power product in the current 200–480Vac R2-H category. It is designed for larger inter-canopy and supplemental horticulture fixtures using the same 180–260Vdc output architecture.

For this model, final current matching should be confirmed from the latest approved FAHOLD datasheet before fixture production because current, voltage and maximum-power limits must be electrically consistent with the final 200W configuration.

R2-H 120–277V vs R2-H 200–480V

FAHOLD provides two R2-H input-voltage branches for different commercial horticulture electrical systems.

PlatformRated InputCurrent Power RangeTypical Facility Direction
R2-H 120–277V120–277Vac60W–320WCommercial lighting systems using 120V, 208V, 240V or 277V-class supply
R2-H 200–480V200–480Vac60W–200WHigh-voltage horticulture facilities using compatible 277V, 347V or 480V-class distribution

Both branches use a 180–260Vdc LED output architecture. Choose between them primarily according to facility AC voltage and the required fixture power.

For lower-voltage projects, compare

R2-H 120–277V Inter-Canopy Grow Light Drivers
.

R2-H 200–480V vs R4-V 200–480V Grow Light Drivers

Both product families support high-voltage AC input, but they serve very different horticulture fixture classes.

RequirementR2-H 200–480VR4-V 200–480V
Primary ApplicationInter-canopy, bottom-fill and slim supplemental fixturesHigh-power commercial grow lights and LED bar fixtures
Power Direction60W–200W400W–1200W
LED Output Platform180–260Vdc210–360Vdc
Mechanical DirectionUltra-narrow 44mm-class enclosureSlim high-power enclosure

Choose R2-H when the project requires a compact high-voltage driver for inter-canopy or bottom-fill lighting. For substantially higher-power single-channel grow lights, compare

R4-V 200–480V High-Power Grow Light Drivers
.

How to Select the Right R2-H 200–480V Driver

  1. Confirm the facility AC supply.
    Verify that the lighting circuit is within the 200–480Vac rated-input range.
  2. Define the LED forward-voltage window.
    Provide the minimum, nominal and maximum voltage of the LED string.
  3. Confirm compatibility with 180–260Vdc.
    The complete LED operating range must remain inside the R2-H output-voltage window.
  4. Determine the required LED current.
    Match the required operating current to the verified electrical limits of the selected model.
  5. Select the power class.
    Choose between 60W, 120W, 150W and 200W according to the actual LED electrical load.
  6. Define the control method.
    Specify whether the fixture uses 0(1)–10V or PWM control.
  7. Define the programmed current.
    If offline programming is required, specify the required operating point before production.
  8. Determine whether auxiliary power is required.
    Specify the optional 12V / 200mA A12 configuration when compatible fixture electronics require local low-voltage power.
  9. Review mechanical and thermal requirements.
    Confirm enclosure length, 44mm-class width, fixture mounting, heat dissipation and cable routing.
  10. Confirm high-voltage safety and certification.
    Because R2-H uses a non-isolated architecture, review fixture insulation, accessible parts, connectors, wiring and target-market compliance before production approval.

R2-H High-Voltage Inter-Canopy Driver Manufacturer for OEM Projects

High-voltage inter-canopy lighting requires accurate coordination between facility power, LED strings, driver electronics and fixture mechanics. AC input voltage, LED operating range, programmed current, driver width, control interface, auxiliary electronics and certification requirements can all affect final model selection.

FAHOLD supports R2-H electrical matching, programmable-output evaluation, technical datasheets, samples and OEM/ODM inter-canopy lighting projects. For accurate pre-selection, provide the facility AC voltage, LED voltage range, required current, maximum fixture power, dimming method, available mechanical space, auxiliary-power requirement, target certification and expected quantity.

For the broader product family, return to

Non-Isolated Single-Channel Grow Light Drivers
.
For application-level horticulture selection, review

FAHOLD Grow Lighting LED Driver Solutions
.

Frequently Asked Questions

What is the FAHOLD R2-H 200–480V inter-canopy LED driver?

FAHOLD R2-H is an ultra-narrow non-isolated single-channel constant-current LED driver platform for inter-canopy, bottom-fill, under-canopy and supplemental horticulture fixtures. The high-voltage range uses 200–480Vac input and 180–260Vdc output with current power options from 60W to 200W.

What wattages are available for R2-H 200–480V grow light drivers?

The current R2-H 200–480Vac range includes 60W, 120W, 150W and 200W models. All four use a 180–260Vdc output platform for compatible high-voltage horticulture LED strings.

Can R2-H drivers operate on 347V or 480V horticulture systems?

Yes. Current R2-H high-voltage models use a 200–480Vac rated-input platform, making them suitable for compatible commercial horticulture systems using 347V or 480V-class electrical distribution. The complete fixture and project electrical requirements must still be verified.

What output-voltage range does the high-voltage R2-H Series use?

All current R2-H 200–480Vac models use a 180–260Vdc constant-current output platform. The complete forward-voltage range of the connected LED string must remain within this operating window.

Is R2-H suitable for inter-canopy and bottom-fill lighting?

Yes. R2-H is specifically designed for inter-canopy, bottom-fill and supplemental horticulture fixtures where a narrow mechanical profile and high-voltage LED-string architecture are required.

Do R2-H 200–480V drivers support 0–10V and PWM dimming?

Yes. Compatible Type B configurations support 0(1)–10V and PWM control together with offline programmable current setting. Control wiring and controller compatibility should be confirmed for the selected project.

Are R2-H high-voltage grow light drivers programmable?

Yes. Compatible R2-H Type B configurations support offline programming for output-current setting within the supported electrical limits of the selected model. This can help OEM manufacturers use one driver platform across related fixture variants.

Does R2-H provide optional 12V auxiliary power?

Yes. An optional A12 configuration provides a 12V / 200mA auxiliary supply for compatible fixture electronics. This feature is configuration-dependent and should be specified when requesting samples or production units.

What is the difference between the 120–277V and 200–480V R2-H drivers?

The 120–277Vac R2-H range is intended for common commercial lighting voltages and currently extends from 60W to 320W. The 200–480Vac range is designed for higher-voltage facility distribution and currently covers 60W to 200W. Both use a 180–260Vdc LED output platform.

How do I select the correct R2-H 200–480V inter-canopy driver?

Start with the facility AC voltage, then confirm that the LED string fits within the 180–260Vdc output window. Match the required LED current and maximum power to the selected driver, then confirm 0–10V or PWM control, programming, auxiliary-power, mechanical, thermal and certification requirements.

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