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Hygger 24/7 Mode Auto On Off LED Light HG999-22W
Order processing time: 3–5 business days
Create a vibrant, natural-looking lighting environment for your freshwater aquarium with the Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W. Designed for aquariums measuring 24–30 inches, this programmable full-spectrum LED light combines automatic on/off scheduling, adjustable brightness, customizable colors, and a convenient LCD controller.
Featuring 115 high-quality LED chips and approximately 1,480 lumens of illumination, the Hygger HG999 22W uses white, red, green, and blue LEDs to enhance fish coloration and provide suitable lighting for many freshwater aquatic plants. Its customizable daily lighting cycle allows aquarium owners to create gradual transitions between daylight, evening illumination, and darkness.
Whether you're upgrading your existing aquarium light or creating a new planted freshwater display, the Hygger HG999 22W offers flexible lighting control with convenient automatic operation.
Benefits of the Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W
22W Full-Spectrum LED Lighting: Provides bright, energy-efficient illumination for compatible freshwater aquariums.
Designed for 24–30 Inch Aquariums: Features extendable mounting brackets to accommodate suitable tank lengths.
115 LED Chips: Delivers balanced illumination that enhances fish colors and aquatic plants.
Approximately 1,480 Lumens: Provides effective lighting for appropriately sized freshwater tanks.
Automatic On/Off Scheduling: Runs programmed lighting cycles without requiring daily manual switching.
Three Programmable Lighting Modes: Includes Day Mode, Night Mode, and DIY Mode.
Eight Customizable Lighting Periods: Allows personalized lighting schedules with adjustable colors, brightness, and timing.
Adjustable Brightness: Offers convenient control over lighting intensity.
LCD Controller: Displays time, selected mode, brightness, and programming information.
Gradual Lighting Transitions: Features approximately 15-minute fade-in and fade-out effects.
IP68-Rated LED Housing: Features sealed construction designed to resist aquarium moisture and splashes.
Power-Off Memory: Retains programmed lighting settings after a power interruption.
Designed for Freshwater and Planted Aquariums
The Hygger HG999 22W Aquarium LED Light is designed to provide full-spectrum illumination for freshwater fish and compatible aquatic plants.
Its combination of white, red, green, and blue LEDs produces a balanced lighting spectrum that highlights the natural colors of fish, aquarium decorations, and aquatic vegetation.
The full-spectrum output also supplies useful wavelengths for photosynthesis in suitable freshwater plants.
With approximately 1,480 lumens of illumination, the 22W model provides increased light output compared with the smaller HG999 14W and 18W versions.
Actual plant growth depends on lighting intensity, aquarium depth, photoperiod, nutrient availability, carbon dioxide levels, and plant species.
Three Programmable Lighting Modes
The Hygger HG999 features three customizable lighting modes for convenient aquarium illumination.
Day Mode (51)
Day Mode provides full-spectrum daylight illumination with adjustable brightness.
Users can select the lighting start and end times and adjust the intensity to suit their aquarium.
The light gradually brightens and dims over approximately 15 minutes, helping create smoother transitions between illuminated and dark periods.
Night Mode (52)
Night Mode allows users to choose from seven decorative lighting colors:
Red
Orange
Yellow
Green
Cyan
Blue
Purple
This mode is useful for highlighting aquarium decorations and creating an attractive evening display.
Nighttime lighting should be limited appropriately so fish and other aquarium inhabitants receive a regular period of darkness.
DIY Mode (53)
DIY Mode offers advanced lighting customization through eight programmable time periods, identified as L1–L8.
Each period can be configured with its own lighting duration, color balance, and brightness.
Users can adjust the white, red, green, and blue lighting channels to create a personalized daily lighting cycle.
This feature is particularly useful for aquarium owners who want greater control over lighting conditions in planted freshwater tanks.
LCD Controller and Automatic Daily Scheduling
The Hygger HG999 22W includes a wired LCD controller with six setting buttons.
The display provides convenient access to:
Local time settings
Selected lighting mode
Lighting start and end times
Brightness adjustments
Light color settings
Eight customizable DIY lighting periods
Once programmed, the aquarium light automatically follows the selected daily schedule.
The built-in memory function retains saved lighting programs after a power interruption. However, the local clock must be reset when electrical power is restored.
Durable Aluminum Housing and Adjustable Brackets
The Hygger HG999 features a slim aluminum housing designed to dissipate heat efficiently without requiring a cooling fan.
Its sealed LED housing carries an IP68 water-resistance rating, helping protect the light against moisture and accidental splashes.
The extendable metal mounting brackets allow the 22W model to fit compatible aquariums measuring 24–30 inches in length.
For safe operation, install the fixture above the aquarium according to the manufacturer's instructions and keep the controller and electrical connections dry.
Suitable Aquarium Applications
The Hygger HG999 22W LED Light is suitable for compatible setups, including:
Freshwater aquariums measuring 24–30 inches
Planted freshwater aquariums
Tropical community fish tanks
Aquascaped freshwater displays
Low- to moderate-light aquatic plant setups
Decorative freshwater aquariums
Freshwater fish tanks requiring automatic lighting schedules
Aquariums requiring customizable full-spectrum LED lighting
This model is primarily designed for freshwater applications and is not intended as specialized coral reef lighting.
Installation and Usage Guidelines
Attach the included extendable metal brackets to the LED light fixture.
Position the light securely across a compatible 24–30 inch aquarium.
Connect the wired LCD controller and included power adapter.
Set the correct local time using the controller.
Select Day Mode, Night Mode, or DIY Mode.
Adjust the lighting schedule, brightness, and color settings according to your aquarium's requirements.
Allow the light to operate automatically according to the programmed schedule.
Monitor fish and plant responses and adjust lighting duration or intensity as needed.
Aquarium Lighting Tip: Begin with a moderate daily photoperiod and adjust gradually according to plant growth and algae development. Consistent lighting schedules are generally preferable to leaving aquarium lights on continuously.
Maintenance Tip: Periodically clean the light housing to remove dust, water spots, and mineral deposits. Always disconnect electrical power before cleaning.
Important Safety Information: Although the LED housing is IP68-rated, the power adapter and controller must remain dry. Do not intentionally submerge the complete lighting system.
Product Specifications
Brand: Hygger
Product: 24/7 Mode Auto On Off LED Light
Model: HG999-22W
Power Rating: 22W
Recommended Aquarium Length: 24–30 inches
Light Fixture Length: 24 inches
LED Quantity: 115
Lighting Type: Full-Spectrum WRGB LED
LED Colors: White, Red, Green, and Blue
Luminous Output: Approximately 1,480 lumens
Lighting Modes: Day Mode, Night Mode, and DIY Mode
DIY Programming: Up to 8 customizable lighting periods
Brightness Control: Adjustable
Lighting Transitions: Approximately 15-minute gradual fade
Controller: Wired LCD controller with six setting buttons
Automatic Timer: Programmable daily on/off schedules
Memory Function: Retains programmed settings after power interruptions
Water-Resistance Rating: IP68 LED housing
Housing Material: Aluminum
Mounting: Extendable metal brackets
Power Input: AC 100–240V
Adapter Output: DC 20V
Power Cord Length: Approximately 4.9 ft + 2.3 ft
Recommended Water Type: Freshwater
Primary Applications: Freshwater fish tanks and compatible planted aquariums
Specifications are based on Hygger's published HG999 product information and user manual. Actual lighting performance depends on aquarium dimensions, mounting position, operating settings, and plant requirements.
Package Includes
1 × Hygger HG999 22W LED Aquarium Light
1 × AC/DC Power Adapter
2 × Extendable Metal Mounting Brackets
1 × User Manual
Create a Beautiful Daily Lighting Cycle
The Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W is a practical choice for freshwater aquarium owners who want bright illumination, convenient automatic scheduling, and customizable lighting controls.
With its 115 full-spectrum LED chips, approximately 1,480-lumen output, three programmable lighting modes, eight DIY lighting periods, LCD controller, and adjustable mounting brackets, this aquarium light helps create an attractive and consistent lighting environment.
Order the Hygger HG999 22W Auto On Off LED Aquarium Light today and enjoy vibrant freshwater aquarium illumination with convenient programmable control.
Order processing time: 3–5 business days
Create a vibrant, natural-looking lighting environment for your freshwater aquarium with the Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W. Designed for aquariums measuring 24–30 inches, this programmable full-spectrum LED light combines automatic on/off scheduling, adjustable brightness, customizable colors, and a convenient LCD controller.
Featuring 115 high-quality LED chips and approximately 1,480 lumens of illumination, the Hygger HG999 22W uses white, red, green, and blue LEDs to enhance fish coloration and provide suitable lighting for many freshwater aquatic plants. Its customizable daily lighting cycle allows aquarium owners to create gradual transitions between daylight, evening illumination, and darkness.
Whether you're upgrading your existing aquarium light or creating a new planted freshwater display, the Hygger HG999 22W offers flexible lighting control with convenient automatic operation.
Benefits of the Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W
22W Full-Spectrum LED Lighting: Provides bright, energy-efficient illumination for compatible freshwater aquariums.
Designed for 24–30 Inch Aquariums: Features extendable mounting brackets to accommodate suitable tank lengths.
115 LED Chips: Delivers balanced illumination that enhances fish colors and aquatic plants.
Approximately 1,480 Lumens: Provides effective lighting for appropriately sized freshwater tanks.
Automatic On/Off Scheduling: Runs programmed lighting cycles without requiring daily manual switching.
Three Programmable Lighting Modes: Includes Day Mode, Night Mode, and DIY Mode.
Eight Customizable Lighting Periods: Allows personalized lighting schedules with adjustable colors, brightness, and timing.
Adjustable Brightness: Offers convenient control over lighting intensity.
LCD Controller: Displays time, selected mode, brightness, and programming information.
Gradual Lighting Transitions: Features approximately 15-minute fade-in and fade-out effects.
IP68-Rated LED Housing: Features sealed construction designed to resist aquarium moisture and splashes.
Power-Off Memory: Retains programmed lighting settings after a power interruption.
Designed for Freshwater and Planted Aquariums
The Hygger HG999 22W Aquarium LED Light is designed to provide full-spectrum illumination for freshwater fish and compatible aquatic plants.
Its combination of white, red, green, and blue LEDs produces a balanced lighting spectrum that highlights the natural colors of fish, aquarium decorations, and aquatic vegetation.
The full-spectrum output also supplies useful wavelengths for photosynthesis in suitable freshwater plants.
With approximately 1,480 lumens of illumination, the 22W model provides increased light output compared with the smaller HG999 14W and 18W versions.
Actual plant growth depends on lighting intensity, aquarium depth, photoperiod, nutrient availability, carbon dioxide levels, and plant species.
Three Programmable Lighting Modes
The Hygger HG999 features three customizable lighting modes for convenient aquarium illumination.
Day Mode (51)
Day Mode provides full-spectrum daylight illumination with adjustable brightness.
Users can select the lighting start and end times and adjust the intensity to suit their aquarium.
The light gradually brightens and dims over approximately 15 minutes, helping create smoother transitions between illuminated and dark periods.
Night Mode (52)
Night Mode allows users to choose from seven decorative lighting colors:
Red
Orange
Yellow
Green
Cyan
Blue
Purple
This mode is useful for highlighting aquarium decorations and creating an attractive evening display.
Nighttime lighting should be limited appropriately so fish and other aquarium inhabitants receive a regular period of darkness.
DIY Mode (53)
DIY Mode offers advanced lighting customization through eight programmable time periods, identified as L1–L8.
Each period can be configured with its own lighting duration, color balance, and brightness.
Users can adjust the white, red, green, and blue lighting channels to create a personalized daily lighting cycle.
This feature is particularly useful for aquarium owners who want greater control over lighting conditions in planted freshwater tanks.
LCD Controller and Automatic Daily Scheduling
The Hygger HG999 22W includes a wired LCD controller with six setting buttons.
The display provides convenient access to:
Local time settings
Selected lighting mode
Lighting start and end times
Brightness adjustments
Light color settings
Eight customizable DIY lighting periods
Once programmed, the aquarium light automatically follows the selected daily schedule.
The built-in memory function retains saved lighting programs after a power interruption. However, the local clock must be reset when electrical power is restored.
Durable Aluminum Housing and Adjustable Brackets
The Hygger HG999 features a slim aluminum housing designed to dissipate heat efficiently without requiring a cooling fan.
Its sealed LED housing carries an IP68 water-resistance rating, helping protect the light against moisture and accidental splashes.
The extendable metal mounting brackets allow the 22W model to fit compatible aquariums measuring 24–30 inches in length.
For safe operation, install the fixture above the aquarium according to the manufacturer's instructions and keep the controller and electrical connections dry.
Suitable Aquarium Applications
The Hygger HG999 22W LED Light is suitable for compatible setups, including:
Freshwater aquariums measuring 24–30 inches
Planted freshwater aquariums
Tropical community fish tanks
Aquascaped freshwater displays
Low- to moderate-light aquatic plant setups
Decorative freshwater aquariums
Freshwater fish tanks requiring automatic lighting schedules
Aquariums requiring customizable full-spectrum LED lighting
This model is primarily designed for freshwater applications and is not intended as specialized coral reef lighting.
Installation and Usage Guidelines
Attach the included extendable metal brackets to the LED light fixture.
Position the light securely across a compatible 24–30 inch aquarium.
Connect the wired LCD controller and included power adapter.
Set the correct local time using the controller.
Select Day Mode, Night Mode, or DIY Mode.
Adjust the lighting schedule, brightness, and color settings according to your aquarium's requirements.
Allow the light to operate automatically according to the programmed schedule.
Monitor fish and plant responses and adjust lighting duration or intensity as needed.
Aquarium Lighting Tip: Begin with a moderate daily photoperiod and adjust gradually according to plant growth and algae development. Consistent lighting schedules are generally preferable to leaving aquarium lights on continuously.
Maintenance Tip: Periodically clean the light housing to remove dust, water spots, and mineral deposits. Always disconnect electrical power before cleaning.
Important Safety Information: Although the LED housing is IP68-rated, the power adapter and controller must remain dry. Do not intentionally submerge the complete lighting system.
Product Specifications
Brand: Hygger
Product: 24/7 Mode Auto On Off LED Light
Model: HG999-22W
Power Rating: 22W
Recommended Aquarium Length: 24–30 inches
Light Fixture Length: 24 inches
LED Quantity: 115
Lighting Type: Full-Spectrum WRGB LED
LED Colors: White, Red, Green, and Blue
Luminous Output: Approximately 1,480 lumens
Lighting Modes: Day Mode, Night Mode, and DIY Mode
DIY Programming: Up to 8 customizable lighting periods
Brightness Control: Adjustable
Lighting Transitions: Approximately 15-minute gradual fade
Controller: Wired LCD controller with six setting buttons
Automatic Timer: Programmable daily on/off schedules
Memory Function: Retains programmed settings after power interruptions
Water-Resistance Rating: IP68 LED housing
Housing Material: Aluminum
Mounting: Extendable metal brackets
Power Input: AC 100–240V
Adapter Output: DC 20V
Power Cord Length: Approximately 4.9 ft + 2.3 ft
Recommended Water Type: Freshwater
Primary Applications: Freshwater fish tanks and compatible planted aquariums
Specifications are based on Hygger's published HG999 product information and user manual. Actual lighting performance depends on aquarium dimensions, mounting position, operating settings, and plant requirements.
Package Includes
1 × Hygger HG999 22W LED Aquarium Light
1 × AC/DC Power Adapter
2 × Extendable Metal Mounting Brackets
1 × User Manual
Create a Beautiful Daily Lighting Cycle
The Hygger 24/7 Mode Auto On Off LED Light HG999 – 22W is a practical choice for freshwater aquarium owners who want bright illumination, convenient automatic scheduling, and customizable lighting controls.
With its 115 full-spectrum LED chips, approximately 1,480-lumen output, three programmable lighting modes, eight DIY lighting periods, LCD controller, and adjustable mounting brackets, this aquarium light helps create an attractive and consistent lighting environment.
Order the Hygger HG999 22W Auto On Off LED Aquarium Light today and enjoy vibrant freshwater aquarium illumination with convenient programmable control.

