Important Safety Instructions
Please read and follow all safety instructions carefully before operating this product. Failure to do so may result in damage to the product, injury, or electric shock.
- Ensure the power supply is disconnected before performing any maintenance or installation.
- This product is designed for indoor use only. Do not expose to rain or extreme weather conditions.
- Do not operate if any part of the light or power cord is damaged. Contact customer support for replacement parts.
- Keep the power adapter and controller away from water.
- Ensure the light fixture is securely mounted to prevent it from falling into the aquarium.
- Do not attempt to disassemble or modify the light fixture.
Product Overview
The hygger Aquarium LED Light Model 075 is a full-spectrum lighting solution designed for freshwater aquariums, specifically for tanks measuring 36 to 42 inches. It features a 24/7 day-night cycle mode, an auto on/off timer, 7 color options, and dimmable brightness levels. The extendable brackets allow for versatile installation.
Components Included:
- LED Light Fixture
- External Controller
- Power Adapter
- Extendable Brackets (2 pieces)

Image: The hygger Aquarium LED Light fixture with its integrated controller.

Image: Key features including waterproof design, power adapter, extendable brackets, and aluminum shell for heat dissipation.
Product Video Overview:
Video: An overview of the hygger Aquarium LED Light, demonstrating its features and appearance on an aquarium.
Setup
1. Attach Extendable Brackets:
Slide the metal extendable brackets into the slots on each end of the LED light fixture. Ensure they are securely fitted.

Image: Detail of the extendable bracket, showing its 1.6-inch height and 3.5-inch extension capability.
2. Position the Light:
Place the light fixture on top of your aquarium, adjusting the extendable brackets to fit the tank's width (36-42 inches). Ensure the light is centered and stable.
3. Connect Power:
Connect the external controller to the light fixture, then connect the power adapter to the controller and plug it into a suitable power outlet. Ensure all connections are firm.

Image: Illustration of the power connection sequence from the light to the controller and then to the power adapter.
Operating Instructions
Controller Overview:
The external controller allows for comprehensive control over the light's functions. Familiarize yourself with the buttons:
- Power Button: Turns the light On/Off.
- MAX Button: Activates 100% full spectrum lighting instantly.
- Timer Button (6H, 10H, 12H): Sets the light to operate for a fixed duration.
- 24H/SET Button: Initiates and sets the 24/7 day-night cycle mode.
- Color Cycle Button: Cycles through various colors automatically.
- Color Button: Selects fixed single colors (Red, Green, Blue, Orange, Yellow, Cyan, Purple, Full Spectrum).
- Brightness +/- Buttons: Adjusts light intensity (10%, 25%, 50%, 75%, 100%).

Image: Detailed view of the controller, highlighting each button's function for easy operation.
1. 24/7 Day-Night Cycle Mode:
This mode simulates a natural 24-hour light cycle, including gradual sunrise, daylight, sunset, and moonlight. Color and brightness are preset in this mode.
- Press and hold the 24H/SET button to enter setting mode.
- Use the +/- buttons to select the desired start time for the cycle.
- Press 24H/SET again to save the start time.
- Use the +/- buttons to select the desired end time for the cycle.
- Press 24H/SET again to save the end time.
- Synchronize with local time by adjusting the clock on the controller.

Image: Visual representation of the 24/7 day-night cycle, showing the gradual changes in light intensity and color.
2. Timer Mode:
Set the light to operate for a fixed duration (6, 10, or 12 hours) with your chosen color and brightness. The light will automatically turn on at the same time each day.
- Select the desired timer duration (6H, 10H, or 12H) using the Timer button.
- Choose your preferred color using the Color button.
- Adjust the brightness using the +/- buttons.

Image: Timer mode settings and visual examples of the five dimmable brightness levels.
3. Color Options:
The light offers 7 fixed single colors (red, green, blue, orange, yellow, cyan, purple) and a full spectrum option. You can also activate a color gradual change cycling mode with three speed options (10s, 20s, 40s).
- Press the Color button to cycle through fixed colors.
- Press the Color Cycle button to activate the gradual color change mode. Press again to change speed.
4. Dimmable Function:
Adjust the light's brightness from 10% to 100% in five levels.
- Use the +/- buttons to increase or decrease brightness.
Operation Video:
Video: Demonstrates how to use the timer mode and 24/7 day-night cycle mode on the controller.
Maintenance
Cleaning the Light Fixture:
Regular cleaning helps maintain optimal light output and extends the product's lifespan.
- Always unplug the light from the power outlet before cleaning.
- Wipe the exterior of the light fixture with a soft, damp cloth.
- Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the light's surface or internal components.
- Ensure the light is completely dry before plugging it back in.
Troubleshooting
Light Not Turning On:
- Check if the power adapter is securely plugged into both the wall outlet and the controller.
- Ensure the controller is properly connected to the light fixture.
- Verify that the power outlet is functional by testing it with another device.
Timer or 24/7 Mode Not Working Correctly:
- Re-set the timer or 24/7 mode according to the operating instructions.
- Ensure the controller's internal clock is synchronized with your local time.
- If power was interrupted, the timer settings might need to be re-entered.
Inconsistent Brightness or Color:
- Check for any loose connections between the light, controller, and power adapter.
- Ensure the light fixture is clean and free from water spots or debris on the LEDs.
Specifications
| Feature | Specification |
|---|---|
| Model Number | 075 |
| Size (Current Model) | 40W for 36~42 inch Tank |
| Product Dimensions | 35.2"L x 3.6"W x 2.8"H |
| Item Weight | 2.59 pounds |
| Light Source Type | LED (2835 LED + 5054 WRGB bulbs) |
| Light Source Wattage | 40 Watts |
| Light Output Maximum | 2100 Lumens |
| Color Temperature | 6000-10000K |
| Input Voltage | AC100-240V |
| Output Voltage | DC 20V |
| Material | Aluminum |
| Mounting Type | Extendable Brackets |
| Bulb Features | 24/7 mode, timer mode, memory function, adjustable colors, dimmable |

Image: Full spectrum graph indicating super-brightness from 420nm to 660nm, suitable for plant growth.

Image: A visual guide to choosing the correct light size based on tank dimensions and wattage.
Warranty and Support
Warranty Information:
This hygger Aquarium LED Light comes with a 1-year warranty from the date of purchase. The warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
Customer Support:
For technical assistance, troubleshooting, or warranty inquiries, please contact hygger customer support through the retailer where the product was purchased or visit the official hygger website for contact details.







