H2 Isolated Grow Light Drivers (120-277Vac)
FAHOLD H2 isolated single-channel grow light drivers are designed for high-power commercial horticulture fixtures operating from 120–277Vac input. The platform provides one regulated constant-current output for indoor grow lights, greenhouse fixtures and professional LED horticulture systems from 650W to 1200W.
Current H2 models cover 36–56V, 42–56V and 42–62V output platforms with high-current capability up to 24A depending on model. Compatible configurations support offline programming, adaptive output-voltage operation, 0–10V / PWM / resistor control and Dim-to-Off without afterglow.
Compare the four H2 models below by wattage, LED voltage window, output-current range and control requirements. FAHOLD also supports driver matching, programming requirements, datasheets, samples and OEM/ODM grow-light projects.
H2 120–277V Isolated Grow Light LED Drivers
FAHOLD H2 is a high-power isolated single-channel LED driver platform developed for commercial grow-light and horticulture fixtures that require one regulated constant-current output. The current H2 range uses 120–277Vac rated input and covers 650W, 800W, 1000W and 1200W power classes for professional indoor-grow and greenhouse lighting systems.
H2 is designed for fixture manufacturers that need more than a fixed-output power supply. The platform combines isolated architecture, programmable output, adaptive output-voltage operation and flexible dimming control so the driver can be matched more closely to the electrical requirements of the LED board.
Compare H2 650W, 800W, 1000W and 1200W Models
The four current H2 models use different output-voltage and current ranges. The correct model should be selected from the actual LED-board forward-voltage window, required operating current and maximum fixture wattage.
| Model Direction | Output Voltage | Output Current | Max. Power | Typical Application |
|---|---|---|---|---|
| H2 650W | 36–56V | 7.0–14.0A | 650W | Commercial indoor grow lights and medium-high-power horticulture fixtures |
| H2 800W | 42–56V | 7.5–16.7A | 800W | High-output indoor-grow and greenhouse fixtures |
| H2 1000W | 42–56V | 10.0–21.0A | 1000W | Very high-power commercial horticulture LED systems |
| H2 1200W | 42–62V | 12.0–24.0A | 1200W | High-intensity greenhouse and professional grow-light fixtures |
Do not select an H2 model only from fixture wattage. The complete LED operating-voltage range and required current must remain within the supported electrical window of the selected driver.
120–277Vac Input for Commercial Grow-Light Systems
All current H2 models use a 120–277Vac rated-input platform. This makes the series suitable for commercial horticulture projects operating from common North American lighting and building supply voltages such as 120Vac, 208Vac, 240Vac and 277Vac, subject to the specific project electrical design.
The AC input voltage should be confirmed independently from the LED output requirements. A grow-light fixture can receive 277Vac from the facility while the H2 driver supplies a regulated 36–56V, 42–56V or 42–62V constant-current output to the LED board.
For projects designed around 200–277Vac input and higher power classes up to 1500W, compare the
H2E Isolated Grow Light Drivers
.
High-Current LED Drivers for Commercial Horticulture Fixtures
H2 is designed around high-current single-channel LED architectures. As fixture power increases while the LED operating voltage remains relatively low, the required DC output current can become substantial.
Current H2 models range from approximately 7A on the lower-power 650W platform to as much as 24A on the 1200W model. At these current levels, cable size, connector rating, PCB current paths, LED-board layout and thermal management become important parts of the complete fixture design.
The output-current requirement should therefore be evaluated together with voltage and wattage rather than treated as a secondary parameter.
36–56V, 42–56V and 42–62V Grow Light Driver Platforms
H2 uses three main LED output-voltage windows across the current product range. These options allow fixture manufacturers to match the driver more accurately to different horticulture LED-board architectures.
| Output Window | H2 Model Direction | Selection Consideration |
|---|---|---|
| 36–56V | 650W | Suitable for high-current LED boards requiring a wider lower-voltage operating range |
| 42–56V | 800W / 1000W | Common high-power horticulture LED-board architecture |
| 42–62V | 1200W | Provides additional voltage headroom for very high-power grow-light systems |
For correct matching, provide the minimum, nominal and maximum forward voltage of the LED board. The complete operating range should remain within the driver window across temperature, dimming and production tolerances.
Programmable H2 Grow Light LED Drivers
H2 supports offline programmable output on compatible configurations. This allows supported electrical parameters to be configured within the driver's operating range so one platform can be adapted to different LED boards, fixture power targets or product variants.
Programmability can help grow-light manufacturers reduce the number of unique power platforms used across an OEM product family. Different fixture SKUs may use the same H2 hardware direction while operating at different programmed current or power settings, provided those settings remain within the approved electrical limits.
Programming requirements should be defined before production so output-current limits, fixture labels and final electrical specifications remain consistent across the product family.
Adaptive Output Voltage for LED-Board Matching
The H2 platform supports adaptive output-voltage operation within its specified electrical range. This allows the driver to operate across a defined LED forward-voltage window rather than requiring one fixed LED voltage.
This is particularly useful in horticulture fixtures because LED-board forward voltage can vary with board design, current, temperature and component tolerances. The selected H2 model should therefore be matched to the complete operating window rather than only the nominal LED voltage.
0–10V, PWM and Rx Dimming for Grow Lights
Compatible H2 dimmable configurations support 3-in-1 control using 0–10V, PWM and resistor-based Rx input. These methods are commonly used in commercial horticulture systems where light output must respond to crop stage, facility schedules, daylight strategy or centralized environmental controls.
| Control Method | Typical Use | What to Confirm |
|---|---|---|
| 0–10V | Greenhouse controllers and commercial grow-light systems | Control range, wiring and controller compatibility |
| PWM | Fixture-control and automation systems | Signal requirements, frequency and driver compatibility |
| Rx / Resistor | External resistance-based output adjustment | Supported resistance range and control-interface requirements |
The required control architecture should be defined during driver selection. A matching protocol name alone does not guarantee correct system behavior if the controller signal or wiring requirements differ from the driver specification.
Type B Dimming vs Non-Dimming H2 Configurations
H2 supports both dimmable and non-dimmable configurations. According to the current model-code structure, Type B is the 3-in-1 dimming configuration with 0–10V / PWM / Rx control, while a blank dimming code identifies the non-dimming version.
| Configuration | Control Capability | Typical Use |
|---|---|---|
| Type B | 0–10V / PWM / Rx 3-in-1 dimming | Commercial grow lights requiring centralized or external intensity control |
| Non-Dimming | Fixed-output operation | Horticulture fixtures that do not require external dimming control |
Specify the required control configuration when requesting samples or quotations rather than assuming every H2 model is supplied with the same dimming interface.
Dim-to-Off and No-Afterglow Operation
Compatible H2 dimmable configurations support Dim-to-Off operation without visible afterglow. This is particularly relevant in horticulture lighting because cultivation schedules may require a true dark period when the control system commands the fixture to switch off.
The complete lighting-control system should still be verified with the intended controller, wiring and LED load before final fixture approval.
Optional RJ12, Knob Dimmer and 12V Auxiliary Output
H2 provides optional fixture-integration configurations for different OEM control requirements.
- RJ12 + knob configuration: supports compatible fixture-control and local adjustment requirements.
- 12V auxiliary output: provides auxiliary low-voltage power for compatible fixture electronics or control accessories.
These options are configuration-dependent and should be specified during product selection. They should not be assumed to be included on every H2 model.
Up to 95% Typical Efficiency and PF > 0.95
Current H2 technical data lists typical efficiency of approximately 95% across the 650W, 800W, 1000W and 1200W models, with typical power factor above 0.95.
High conversion efficiency is important in horticulture lighting because grow-light fixtures can operate for many hours each day. Lower driver losses reduce wasted electrical power and help limit heat generated inside or around the luminaire.
Actual system performance still depends on input voltage, LED operating point, ambient temperature and fixture thermal design.
IP65 Grow Light Drivers for Commercial Horticulture
All current H2 products in this category are listed with IP65 enclosure protection. This makes the platform suitable for professional horticulture fixtures where protection from dust and moisture is part of the driver integration requirement.
The driver IP rating does not define the environmental rating of the complete grow-light fixture. Connectors, cable sealing, fixture housing, mounting orientation, humidity and thermal conditions must also be considered.
Surge and Electrical Protection for High-Power Grow Lights
H2 provides differential-mode surge protection up to 6kV and common-mode protection up to 10kV, together with short-circuit, over-voltage and over-temperature protection.
These internal protection functions should be combined with correct facility grounding, branch-circuit protection and system-level surge design in commercial grow-light installations.
Applications for H2 120–277V Grow Light Drivers
Commercial Indoor Grow Lights
H2 is suitable for high-power indoor horticulture fixtures using one primary regulated LED load. The 650W to 1200W range covers common commercial grow-light power classes while programmable output supports OEM product-family development.
Greenhouse Grow-Light Fixtures
Greenhouse luminaires operating from 120V, 208V, 240V or 277V-class infrastructure can use the H2 platform where the facility input and LED-board electrical requirements match the selected model.
High-Current Horticulture LED Boards
The H2 output platforms are designed for LED boards requiring substantial current, particularly at 42–56V and 42–62V. The complete board, cabling and connector system must be designed for the selected operating current.
How to Select the Right H2 Grow Light Driver
- Confirm the facility AC input.
Verify that the grow-light project uses a supply within the 120–277Vac rated-input range. - Define the LED-board voltage window.
Record the minimum, nominal and maximum forward voltage of the LED load. - Confirm the required operating current.
Check that the required current falls within the selected H2 model range. - Select the power class.
Choose between 650W, 800W, 1000W and 1200W according to the actual maximum LED load. - Confirm the output-voltage platform.
Select 36–56V, 42–56V or 42–62V according to the LED-board architecture. - Define the control method.
Specify whether the project requires 0–10V, PWM, Rx or fixed-output operation. - Determine the programmed operating point.
If offline programming is required, define the target current and power before production. - Specify optional interfaces.
Confirm whether RJ12 + knob or 12V auxiliary-output configurations are required. - Review environmental and thermal conditions.
Check IP65 suitability, ambient temperature, fixture airflow and heat management. - Confirm project certification requirements.
Verify the applicable safety, EMC and finished-luminaire requirements for the target market.
H2 vs H2E Grow Light Drivers
H2 and H2E share the same broader high-power isolated single-channel platform direction but serve different AC input and power requirements.
| Platform | Rated Input | Power Direction | Typical Selection Scenario |
|---|---|---|---|
| H2 | 120–277Vac | 650W–1200W | Commercial horticulture systems requiring broad lower-voltage AC compatibility |
| H2E | 200–277Vac | 800W–1500W | Higher-power grow-light systems designed specifically around 200–277Vac infrastructure |
Choose H2 when the project requires 120–277Vac input or one of the 650W–1200W configurations shown on this page. Choose H2E when the facility is based on 200–277Vac input and requires higher power classes up to 1500W.
Compare
H2E Isolated Grow Light Drivers
or return to
Isolated Single-Channel Grow Light Drivers
for the wider product range.
H2 Grow Light Driver Manufacturer for OEM Fixtures
High-power horticulture fixtures often require project-specific electrical matching rather than simple wattage selection. LED voltage range, programmed current, dimming interface, auxiliary power, connectors, cabling, enclosure integration and certification requirements can all affect the final driver configuration.
FAHOLD supports H2 project matching, offline-programming requirements, samples and OEM/ODM evaluation. When requesting a recommendation, provide the facility AC input, LED-board voltage range, required current, fixture wattage, dimming protocol, optional interface requirements, target certification and expected quantity.
For complete model-code information, dimensions, certification data and the combined H2 / H2E technical platform, review the
H2 Single-Channel Grow Light LED Driver Series
.
Frequently Asked Questions
What is the FAHOLD H2 grow light LED driver?
FAHOLD H2 is a high-power isolated and programmable single-channel horticulture LED driver platform using 120–277Vac input. The current range includes 650W, 800W, 1000W and 1200W models for commercial grow-light and greenhouse fixtures.
What power ratings are available in the H2 Series?
The current H2 120–277Vac range includes 650W, 800W, 1000W and 1200W models. Final selection should also consider the required LED voltage window and output current rather than wattage alone.
What output-voltage ranges are available for H2 grow light drivers?
Current H2 models use 36–56V, 42–56V and 42–62V output platforms depending on power level. The correct model should be selected from the minimum, nominal and maximum forward voltage of the connected horticulture LED board.
How much output current can H2 grow light drivers provide?
Current H2 models cover output-current ranges from approximately 7A on the 650W platform up to 24A on the 1200W model. The required current must remain within the electrical range of the selected driver at the actual LED operating voltage.
Are H2 horticulture LED drivers programmable?
Yes. Compatible H2 configurations support offline programmable output. Supported electrical parameters can be configured within the operating limits of the selected driver to match different LED boards, current requirements and fixture wattages.
What dimming methods does the H2 Series support?
Compatible H2 Type B configurations support 0–10V, PWM and resistor-based Rx 3-in-1 dimming. Non-dimming configurations are also available. The required control method should be specified before final driver selection.
Does H2 support Dim-to-Off?
Yes. Compatible H2 dimmable configurations support Dim-to-Off operation without afterglow, allowing the LED output to shut down fully at the lower control threshold. This can be useful for horticulture lighting schedules that require a true dark period.
What optional control interfaces are available for H2 drivers?
Depending on configuration, H2 can provide an RJ12 interface with knob dimmer or a 12Vdc auxiliary-output option. These features are configuration-dependent and should be specified when requesting samples or quotations.
Are H2 grow light drivers suitable for commercial horticulture environments?
Current H2 models use IP65 enclosure protection and are designed for professional horticulture and high-power lighting applications. Final suitability also depends on connectors, cable sealing, fixture enclosure, mounting conditions, humidity, ambient temperature and thermal design.
What is the difference between H2 and H2E grow light drivers?
H2 uses a 120–277Vac rated-input platform and covers 650W to 1200W, while H2E uses 200–277Vac input and extends the product range from 800W to 1500W. Choose between them according to facility input voltage, required power, LED voltage range and output-current requirements.
