Introduction
The SEAOURA SR-653 LED Aquarium Light is designed for 75-90cm freshwater tanks, providing a full spectrum lighting solution to promote healthy plant growth and vibrant fish colors. This light features smart timer functions, customizable WRB 3-channel control, and an adjustable bracket for versatile mounting. Its durable ABS housing ensures efficient heat dissipation and stable 24/7 operation.
What's in the Box
- Aquarium Light
- Adapter Cable
- Extendable Mount
- User Manual
Setup Instructions
1. Install Adjustable Bracket
Attach the extendable brackets to both ends of the light fixture. These brackets allow for adjustment to fit various tank sizes (75-90cm) and provide better coverage, room for feeding, and aid in heat dissipation.

Image: The SEAOURA SR-653 LED Aquarium Light with its adjustable brackets extended and resting on the edges of an aquarium. The taller design ensures even light distribution across the tank.
2. Power Connection
Connect the adapter cable to the light fixture and then plug the adapter into a suitable power outlet. Ensure all connections are secure.
Operating Instructions
1. Smart Timer & Auto On/Off
The light features 3 preset timers (6H/8H/12H) for effortless scheduling. The auto on/off function maintains consistent cycles. A 15-minute brightness gradient between modes prevents sudden changes, keeping tank inhabitants calm.

Image: The light controller displaying timer options (6H, 8H, 12H) and a graph illustrating the gradual 15-minute fade-in and fade-out of light intensity to avoid startling fish.
2. WRB 3 Channel Customization
The SR-653 offers WRB 3-channel control, allowing you to mix red, blue, and white LEDs for tailored lighting. Choose from 11 preset colors and adjust brightness across 10 levels to enhance the color of your fish tank and promote vibrant aesthetics.

Image: The light controller with separate sliders for White, Red, and Blue LED channels, allowing users to customize the light spectrum and brightness levels from 0% to 100%.

Image: A visual representation of 10 distinct preset light options and an automatic WRB color cycling mode, showcasing the variety of lighting effects available for the aquarium.
3. Full Spectrum for Plant Growth
Equipped with high-quality 2835 LED chips (White:108pcs/Red:30pcs/Blue:30pcs/Green:6pcs/Pink:6pcs), this light provides a full spectrum optimized for freshwater tanks. It promotes photosynthesis with high PAR output and balanced red/blue wavelengths, creating a stress-free environment essential for healthy aquarium plant growth and fish.

Image: A vibrant planted aquarium illuminated by the full spectrum LED light. Insets detail the types and quantities of LED chips (White, Red, Blue, Green, Pink) and a spectral graph illustrating the light's wavelength distribution for optimal plant growth.
4. 24/7 Natural Mode
The 24/7 Natural Mode simulates a gradual sunrise, daylight, sunset, and moonlight cycle over a 24-hour period. This feature provides a natural light rhythm for your aquarium inhabitants, promoting their well-being and mimicking their natural environment.
Video: This video demonstrates the 24/7 Natural Mode, showing the light transitioning through various stages like day mode, night mode, sunrise, daylight, sunset, and moonlight, with corresponding brightness graphs.
5. Power-off Memory
The light is equipped with a power-off memory function. In the event of a power interruption, the light will retain its last programmed settings and resume operation once power is restored, ensuring consistent lighting cycles.
Video: This video demonstrates the power-off memory feature, showing the light's controller retaining its schedule even after an unexpected blackout and resuming correctly when power is restored.
Maintenance
The light's ABS housing is designed for efficient heat dissipation, contributing to stable performance and prolonged LED life. Regularly wipe the light fixture with a soft, damp cloth to prevent dust and mineral buildup, ensuring optimal light output. Avoid using harsh chemicals or abrasive materials.
Troubleshooting
- Timer Resetting: If the timer settings reset unexpectedly, ensure the power connection is stable. Some users have reported that manual adjustments outside the set time can sometimes override the built-in timer. If using an external timer, ensure it does not interfere with the light's internal programming.
- Moisture Accumulation: While the LED compartment is sealed, moisture can sometimes gather under the plastic screen, especially near bubblers. Ensure proper ventilation around the aquarium to minimize condensation. If moisture persists, gently wipe the exterior of the light. Do not attempt to open the sealed LED compartment.
- Light Brightness/Color Issues: Verify that the desired brightness and color settings are correctly programmed using the WRB 3-channel customization. If using 24/7 mode, ensure the current time is accurately set on the controller for proper cycle progression.
Specifications
| Product Dimensions | 72.8 x 8.5 x 1.34 cm; 1.08 kg |
| Item Model Number | SR-653 |
| Manufacturer | Seaoura |
| Material | Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC) |
| Color | Black |
| Power Source | Corded Electric |
| Maximum Compatible Light Source Wattage | 24 Watts |
| Voltage | 20 Volts |
| Amperage | 2.4 Amps |
| Number of Light Sources | 180 |
| Color Temperature | 7800 Kelvin |
| Color Rendering Index | 89 |
| Light Source Special Features | 10 Level Dimmable, 10 Preset Light + Cycle, 6H/8H/12H Timer, WRB 3-Channel Customizable |
| Mounting Type | Adjustable Bracket Mount |
Warranty & Support
The SEAOURA SR-653 LED Aquarium Light comes with a 1-year manufacturer warranty. For any support or inquiries, please refer to the contact information provided in the included user manual or visit the official SEAOURA store on Amazon.
SEAOURA is committed to making fish keeping easier and more enjoyable, focusing on helpful plant growth and viewing. The brand prides itself on understanding the needs of aquarium hobbyists and pursuing innovation in its products.





