Non-Isolated Single-Channel Grow Light Drivers

FAHOLD non-isolated single-channel grow light drivers provide one regulated constant-current output for inter-canopy fixtures, LED bar lights, commercial indoor grow lights and high-power horticulture luminaires. The portfolio includes compact R2-H platforms for lower-power linear lighting and programmable R4 platforms for high-output commercial grow-light systems.

Current products cover approximately 60W to 1200W with rated-input options including 120–277Vac, 200–277Vac and 200–480Vac. R2-H uses a 180–260Vdc output platform for inter-canopy lighting, while R4 / R4E / R4-V use a 210–360Vdc high-voltage output architecture with offline programming and flexible dimming on compatible configurations.

Compare products below by application, AC input, wattage, LED voltage window, output current and control requirements. FAHOLD also supports electrical matching, programmable-output evaluation, datasheets, samples and OEM/ODM horticulture-lighting projects.

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Non-Isolated Single-Channel LED Drivers for Grow Lights

A non-isolated single-channel horticulture LED driver provides one regulated constant-current output without galvanic isolation between the AC input and LED output. This architecture can support compact mechanical integration, high power density and high conversion efficiency when the complete grow-light fixture is specifically engineered around a non-isolated power system.

FAHOLD non-isolated single-channel products cover two significantly different horticulture applications. R2-H addresses lower-power inter-canopy and linear grow-light fixtures, while R4 / R4E / R4-V address high-power commercial grow lights, LED bar fixtures and greenhouse luminaires.

Because these platforms use different LED voltage, wattage and control architectures, driver selection should begin with the actual fixture application and LED-board electrical requirements rather than wattage alone.

R2-H vs R4 Non-Isolated Grow Light Drivers

R2-H and R4 both belong to the non-isolated single-channel category, but they are designed for different fixture classes.

PlatformPower DirectionOutput VoltagePrimary Application
R2-H60W–320W180–260VdcInter-canopy, linear and lower-power horticulture lighting
R4 / R4E / R4-V400W–1200W210–360VdcHigh-power LED bar lights, indoor grow lights and commercial horticulture fixtures

Choose R2-H when the fixture requires a compact lower-power single-output driver for a high-voltage LED string. Choose R4 when higher fixture wattage, programmable output and broader professional control functions are required.

Single-Channel vs Multi-Channel Grow Light Drivers

A single-channel driver is appropriate when the horticulture luminaire operates as one primary regulated LED load. The driver controls one electrical output rather than separately managing multiple LED sections.

ArchitectureTypical Fixture DesignSelection Direction
Single-ChannelOne primary LED string or electrically combined LED loadInter-canopy fixtures, LED bars and high-power grow lights using one regulated output
Multi-ChannelTwo or more LED loads requiring separate power or controlDual-channel supplemental, spectral or top-grow lighting systems

Total fixture wattage does not determine channel count. A 1000W fixture may still use a single-channel driver if its LED architecture operates as one regulated electrical load.

For fixtures requiring separate LED outputs, compare

Non-Isolated Multi-Channel Grow Light Drivers
.

R2-H Drivers for Inter-Canopy Horticulture Lighting

Inter-canopy lighting places LED fixtures inside or between the crop canopy rather than only above the plants. These fixtures typically require a narrow mechanical format and lower individual fixture power than large overhead top lights.

FAHOLD R2-H uses a non-isolated single-channel constant-current architecture with a 180–260Vdc LED output window. The high LED-string voltage allows a compact driver platform to supply compatible linear horticulture loads efficiently.

Current R2-H products are divided into two AC input groups: 120–277Vac for common commercial lighting infrastructure and 200–480Vac for facilities using higher-voltage electrical distribution.

120–277V R2-H Inter-Canopy LED Drivers

The current 120–277Vac R2-H range includes six power classes: 60W, 100W, 150W, 200W, 240W and 320W. All current products use a 180–260Vdc output-voltage platform.

Power OptionsRated InputOutput PlatformTypical Application
60W–100W120–277Vac180–260VdcCompact inter-canopy and supplemental linear fixtures
150W–200W120–277Vac180–260VdcMedium-power inter-lighting and under-canopy fixtures
240W–320W120–277Vac180–260VdcHigher-output linear horticulture fixtures

For model-level selection, compare

R2-H 120–277Vac Inter-Canopy LED Drivers
.

200–480V R2-H Drivers for High-Voltage Grow Facilities

For commercial horticulture facilities using higher-voltage AC distribution, the R2-H high-voltage branch provides 200–480Vac input while retaining the same 180–260Vdc horticulture LED output architecture.

Current models include 60W, 120W, 150W and 200W power classes. This allows compact inter-canopy or linear grow-light fixtures to operate within compatible 277V, 347V and 480V-class facility infrastructure without requiring a high-power top-light driver.

Compare

R2-H 200–480Vac Inter-Canopy LED Drivers

for the high-voltage product group.

R4 High-Power Non-Isolated Grow Light Drivers

R4 is the high-power branch of the FAHOLD non-isolated single-channel horticulture portfolio. It is designed for commercial grow lights, LED bar fixtures and other high-output luminaires that use one high-voltage regulated LED load.

The family covers 400W to 1200W across three AC input platforms: R4 for 120–277Vac, R4E for 200–277Vac and R4-V for 200–480Vac. All current R4 platforms use a 210–360Vdc LED output-voltage window.

Unlike the simpler R2-H application direction, R4 also provides offline programmable output and flexible external control on compatible configurations, making it suitable for OEM grow-light product families with multiple current or wattage targets.

120–277V R4 Grow Light Drivers

The standard R4 branch provides 120–277Vac input for commercial grow-light fixtures that require broad compatibility with common building and lighting supply voltages.

Current power classes include 400W, 600W, 800W and 1000W. All use the 210–360Vdc output platform, with full-power current increasing according to model wattage.

Browse

R4 120–277Vac Grow Light Drivers

for detailed model selection.

200–277V R4E High-Power Grow Light Drivers

R4E is designed for commercial grow-light projects based specifically around 200–277Vac electrical infrastructure. Current products include 500W, 700W, 800W, 1000W and 1200W power classes.

The same 210–360Vdc output architecture allows fixture manufacturers to maintain a consistent high-voltage LED-string design while selecting the driver according to the required power and AC input platform.

Compare

R4E 200–277Vac High-Power Grow Light Drivers
.

200–480V R4-V Grow Light Drivers

R4-V extends the high-power R4 architecture to 200–480Vac input for compatible commercial and industrial horticulture facilities.

Current R4-V models include 400W, 600W, 800W, 1000W and 1200W power classes. This platform can support facilities using high-voltage distribution such as 347V and 480V-class systems while maintaining the R4 210–360Vdc output architecture.

Compare

R4-V 200–480Vac Grow Light Drivers
.

180–260V vs 210–360V Grow Light Driver Output

The LED output-voltage window is one of the clearest distinctions between R2-H and R4.

Output WindowPlatformTypical Fixture Direction
180–260VdcR2-HLower-power inter-canopy and linear horticulture LED strings
210–360VdcR4 / R4E / R4-VHigh-power commercial grow-light and LED bar architectures

The correct driver cannot be selected from wattage alone. The minimum, nominal and maximum LED forward voltage must remain within the driver's supported output range at the intended operating current.

Programmable Non-Isolated Grow Light Drivers

R4 supports offline programmable output. Supported electrical parameters can be configured within the permitted operating range of the selected driver to match different LED-board currents, fixture wattages or product variants.

This can help grow-light manufacturers reduce the number of unique driver platforms used across an OEM product family. Several luminaire SKUs can potentially share the same driver direction while using different programmed output settings within the approved electrical limits.

Programming requirements should be defined during fixture development so production settings, electrical specifications and finished-product labels remain consistent.

0–10V, PWM and Resistor Dimming for R4 Grow Lights

Compatible R4 Type B configurations support 3-in-1 dimming using 0–10V, PWM and resistor-based control. These interfaces allow commercial grow-light output to respond to cultivation stage, daylight strategy, facility scheduling and centralized control systems.

Control MethodTypical ApplicationWhat to Confirm
0–10VCommercial greenhouse and grow-light controllersSignal range, wiring and controller compatibility
PWMFixture controllers and horticulture automationSignal level, frequency and driver compatibility
Resistor / RxExternal resistance-based output adjustmentSupported resistance range and control-interface requirements

Control functions vary by driver family and configuration. Do not assume every non-isolated single-channel product on this page uses the same dimming interface.

Dim-to-Off and Soft-Start on R4 Platforms

Compatible R4 dimmable configurations support Dim-to-Off and soft-start functions. Dim-to-Off allows the LED output to shut down fully at the lower control threshold, while soft-start supports controlled turn-on behavior.

A true off state can be particularly relevant to controlled-environment agriculture when lighting schedules require complete darkness rather than residual LED glow.

Optional RJ12, Knob Dimming and 12V Auxiliary Output

Selected R4 configurations support additional fixture-integration options such as an RJ12 interface with knob dimming or a 12V auxiliary-power output.

These functions are configuration-dependent and should be specified during product selection. They should not be assumed to be standard on every R4, R4E or R4-V model.

Up to 97% Typical Efficiency for High-Power Grow Lights

High conversion efficiency is particularly important in horticulture lighting because fixtures can operate for long daily cycles. Electrical losses increase energy consumption and become heat that must be managed by the fixture and facility.

Selected R4 1000W and 1200W models reach approximately 97% typical efficiency, while other current R4 products are typically listed around 96% to 96.5% depending on model.

Actual efficiency depends on input voltage, LED operating point, current and thermal conditions. Efficiency should therefore be evaluated together with output compatibility, power factor, control functions and fixture heat management.

IP65 R4 Drivers for Commercial Horticulture Fixtures

Current R4, R4E and R4-V products use an IP65 enclosure platform for professional horticulture and high-power lighting applications.

The driver IP rating applies to the driver enclosure itself. Connectors, cables, seals, fixture housing, mounting orientation and the complete luminaire must also be designed for the environmental conditions of the grow facility.

Slim High-Power Driver Architecture

One of the key characteristics of R4 is its slim linear enclosure. This allows several hundred watts to more than one kilowatt of driver power to be integrated into grow-light or LED bar fixtures where internal mechanical space is limited.

This high-power-density architecture is particularly relevant to commercial horticulture luminaire manufacturers developing long, narrow or modular fixture structures.

How to Select a Non-Isolated Single-Channel Grow Light Driver

  1. Confirm that non-isolated architecture is appropriate.
    Review LED voltage, enclosure, accessible components, insulation and target certification requirements.
  2. Identify the fixture application.
    Determine whether the project is an inter-canopy light, linear horticulture fixture, LED bar light or high-power commercial grow light.
  3. Confirm the facility AC input.
    Determine whether the system requires 120–277Vac, 200–277Vac or 200–480Vac operation.
  4. Define the LED voltage window.
    Provide the minimum, nominal and maximum forward voltage of the LED load.
  5. Confirm required output current.
    The driver current capability must match the LED operating requirement across the complete voltage range.
  6. Select the appropriate power class.
    Choose R2-H for compatible 60W–320W inter-canopy applications or R4 for 400W–1200W high-power fixtures.
  7. Define the control requirement.
    For R4 projects, specify whether 0–10V, PWM, resistor control or fixed-output operation is required.
  8. Determine whether programmable output is required.
    Offline programming can simplify OEM product families using several output-current or wattage settings.
  9. Review mechanical and environmental requirements.
    Check driver dimensions, enclosure protection, connectors, mounting location, humidity and thermal conditions.
  10. Confirm certification requirements.
    The final driver and finished grow-light luminaire should be evaluated against the target-market safety and EMC requirements.

Which Single-Channel Horticulture Platform Should You Choose?

Fixture RequirementRecommended Direction
60W–320W Inter-Canopy / Linear Grow LightR2-H
400W–1000W Grow Light Using 120–277VacR4
500W–1200W Grow Light Using 200–277VacR4E
400W–1200W High-Voltage Grow Light Using 200–480VacR4-V

For the complete non-isolated horticulture portfolio, return to

Non-Isolated Horticulture LED Drivers
.
For fixture architectures requiring separate outputs, compare

Non-Isolated Multi-Channel Grow Light Drivers
.

For complete R4 dimensions, configuration codes, efficiency data and control options, review the

R4 High-Power Non-Isolated Grow Light LED Driver Series
.

Non-Isolated Single-Channel Grow Light Driver Manufacturer for OEM Projects

Horticulture fixture manufacturers often require more than a standard wattage. LED forward-voltage range, output current, AC input, programmable settings, dimming protocol, connector requirements, cable lengths, enclosure integration and target certification can all affect the final driver configuration.

FAHOLD supports R2-H and R4-family project matching, technical datasheets, samples, programming evaluation and OEM/ODM grow-light development. Providing the facility input voltage, LED voltage window, required current, maximum fixture wattage, control method, environmental requirements and certification target allows the appropriate platform to be identified more efficiently.

Frequently Asked Questions

What is a non-isolated single-channel grow light driver?

A non-isolated single-channel grow light driver provides one regulated constant-current LED output without galvanic isolation between the AC input and LED output. It is suitable for horticulture fixtures specifically engineered around a single high-voltage LED load and a complete non-isolated safety architecture.

What is the difference between single-channel and multi-channel grow light drivers?

A single-channel driver powers one primary regulated LED load. A multi-channel driver provides separate outputs for two or more LED loads or fixture sections. Channel architecture should be selected from the actual electrical design of the grow-light fixture rather than total wattage alone.

What power range is available for FAHOLD non-isolated single-channel grow light drivers?

The current FAHOLD range covers approximately 60W to 1200W. R2-H serves 60W–320W inter-canopy and linear horticulture fixtures, while R4 / R4E / R4-V cover high-power grow-light applications from 400W to 1200W.

Which FAHOLD single-channel driver is suitable for inter-canopy lighting?

R2-H is designed for inter-canopy and linear horticulture lighting. Current products use a 180–260Vdc single-output platform, with 120–277Vac models from 60W to 320W and 200–480Vac models from 60W to 200W.

Which FAHOLD driver is suitable for a high-power single-channel grow light?

The R4 family is designed for high-power non-isolated single-channel grow-light fixtures. Current R4 platforms cover 400W to 1200W with 120–277Vac, 200–277Vac and 200–480Vac input options and a 210–360Vdc output-voltage range.

Are R4 grow light LED drivers programmable?

Yes. Compatible R4 configurations support offline programmable output. Supported parameters can be configured within the electrical operating limits of the selected driver to match different LED-board currents, fixture wattages and OEM product variants.

Do R4 horticulture LED drivers support 0–10V and PWM dimming?

Yes. Compatible R4 Type B configurations support 0–10V, PWM and resistor-based 3-in-1 dimming together with Dim-to-Off. Non-dimming configurations are also available, so the required control type should be specified during model selection.

What input voltages are available for non-isolated single-channel horticulture drivers?

Current FAHOLD platforms include 120–277Vac, 200–277Vac and 200–480Vac rated-input options depending on series. Select the driver according to the actual electrical distribution used by the grow-light fixture or cultivation facility.

What is the difference between the 180–260V and 210–360V grow light driver platforms?

The 180–260Vdc platform is used by R2-H for lower-power inter-canopy and linear horticulture fixtures. The 210–360Vdc platform is used by R4 / R4E / R4-V for higher-power commercial grow lights. The correct output range must match the complete forward-voltage window of the LED load.

What information should I provide when selecting a non-isolated single-channel grow light driver?

Provide the facility AC input, minimum and maximum LED forward voltage, required output current, maximum fixture wattage, dimming method, programming requirement, environmental conditions and target certification. These parameters help determine whether an R2-H, R4, R4E or R4-V platform is appropriate.

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