1. Safety Information
Please read all safety instructions carefully before using the SEAOURA SR-616 LED Aquarium Light. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Indoor Use Only: This product is designed for indoor use with aquariums only. Do not use outdoors or in wet environments other than directly over an aquarium.
- Not Water Resistant: The light unit is not water resistant. Avoid direct contact with water. If the light falls into water, unplug it immediately before attempting to retrieve it.
- Unplug Before Maintenance: Always unplug the light from the power outlet before performing any maintenance, cleaning, or installation.
- Proper Installation: Ensure the light is securely mounted on the aquarium using the provided brackets.
- Power Source: Use only the provided power adapter. Ensure the voltage matches your local power supply.
- Children and Pets: Keep out of reach of children and pets.
2. What's in the Box
Verify that all components are present in the package:
- SEAOURA SR-616 LED Aquarium Light Unit
- Power Cable with Controller
- Extendable Mounting Brackets (2 pcs)
- User Manual
3. Setup
3.1 Attaching the Extendable Brackets
The SEAOURA SR-616 LED Aquarium Light comes with adjustable extendable brackets to fit various tank sizes.
- Locate the two extendable metal brackets.
- Insert the ends of each bracket into the designated slots on both sides of the LED light unit.
- Adjust the brackets by sliding them outwards or inwards to match the width of your aquarium.

Image: Adjustable Extendable Brackets. The image displays the black LED light unit with silver metal brackets extending from its ends, demonstrating how they can be adjusted to fit different aquarium widths.
3.2 Positioning the Light on the Aquarium
Once the brackets are attached and adjusted, carefully place the light unit on top of your aquarium.
- Ensure the light is centered and stable on the aquarium edges.
- Verify that the light unit does not come into direct contact with water.

Image: SEAOURA LED Aquarium Light mounted on a freshwater tank. The light is positioned across the top of a planted aquarium, illuminating the aquatic environment.
3.3 Connecting to Power
Connect the power cable to the light unit and then plug the adapter into a suitable power outlet.
- Ensure the connection is secure.
- The light is now ready for operation.
4. Operating Instructions
The SEAOURA SR-616 LED Aquarium Light features a multi-function controller for easy customization of lighting modes, brightness, and timing.

Image: Controller for SEAOURA LED Aquarium Light. The image shows the black inline controller with four buttons: 'W' (White/Red/Green/Pink), 'On/Off & Brightness' (with percentage symbol), 'Timer' (with clock symbol), and 'B' (Blue).
4.1 Controller Overview (DIY Mode)
The controller allows you to set Time, Color, and Brightness. The light will gradually ascend over 15 minutes and gradually descend during the final 15 minutes after setting the timer, providing a natural transition for your fish.
- 'W' Button: Controls the White, Red, Green, and Pink LEDs. Press to cycle through brightness levels or turn off these colors.
- 'On/Off & Brightness' Button (Percentage Symbol): Controls the overall brightness of all active LEDs (10 levels). Also functions as the main On/Off switch.
- 'Timer' Button (Clock Symbol): Sets the lighting duration to 6 hours, 10 hours, or 12 hours.
- 'B' Button: Controls the Blue LEDs. Press to cycle through brightness levels or turn off blue light.

Image: DIY Mode Controller Diagram. This diagram illustrates the four buttons on the controller and their respective functions for adjusting white/colored lights, overall brightness, timer settings, and blue lights.
4.2 Adjusting Light Modes and Brightness
The light offers three primary color modes: All lights on, White/Red/Green/Pink only, and Blue only.
- To Adjust White/Red/Green/Pink Lights:
- Press the 'W' button twice until the 'W' indicator blinks.
- Each subsequent press of the 'W' button will adjust the brightness of these lights. Continue pressing until the desired brightness is achieved or they are completely off.
- To Adjust Blue Lights:
- Press the 'B' button twice until the 'B' indicator blinks.
- Each subsequent press of the 'B' button will adjust the brightness of the blue lights. Continue pressing until the desired brightness is achieved or they are completely off.
- To Adjust All Lights (White, Red, Green, Pink, Blue):
- If all lights are on, no specific indicator will blink.
- Press the 'On/Off & Brightness' button (percentage symbol) to adjust the overall brightness of all active lights. There are 10 levels of brightness.

Image: 3 Color Light Modes. This image illustrates the different color combinations available: a mode with white, red, pink, and green LEDs, a mode with all LEDs on, and a mode with only blue LEDs.
4.3 Setting the Timer
The timer function allows for automatic on/off cycles.
- First, set your desired light color and brightness using the 'W', 'B', and 'On/Off & Brightness' buttons.
- Press the 'Timer' button (clock symbol) to select the desired duration: 6 hours, 10 hours, or 12 hours. The corresponding indicator light (red for 6H, green for 10H, blue for 12H) will illuminate.
- Once the timer is set, the light will automatically turn on and off daily at the set interval.
- Important: If any button is pressed after setting the timer, the timer function will be reset, and you will need to set it again.
- The light will gradually brighten over 15 minutes at the start of the cycle and gradually dim over 15 minutes at the end of the cycle.
4.4 Memory Function
In case of a power failure, the light's settings (color, brightness, and timer) will be retained. The timer will restart its counting cycle once power is restored.
4.5 Full Spectrum Lighting for Plant Growth
This light provides a full spectrum of colors, including white (6500K), red, pink, green, and blue, which are beneficial for the growth of aquatic plants and enhance the visual appeal of fish.

Image: Full Spectrum Aquarium Light. The light is shown over a vibrant planted aquarium, emphasizing its role in promoting plant growth and enhancing fish colors.
4.6 Video Demonstrations
Video: SEAOURA Aquarium Light Overview. This video demonstrates the various features of the SEAOURA aquarium light, including its different light modes, brightness adjustments, and timer settings.
Video: Closer Look at SEAOURA Aquarium Light. This video provides a detailed view of the light unit and its components, showcasing its design and build quality.
Video: A Budget-Friendly Full Spectrum Light for Planted Tanks. This video highlights the effectiveness of the light for planted aquariums, demonstrating its full spectrum capabilities.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your aquarium light.
- Cleaning: Always unplug the light before cleaning. Use a soft, dry cloth to wipe the light unit. Do not use abrasive cleaners or immerse the unit in water.
- Inspection: Periodically check the power cord and light unit for any signs of damage. If any damage is found, discontinue use immediately and contact customer support.
- Water Contact: Ensure the light unit remains dry. Avoid splashing water directly onto the light.
6. Troubleshooting
If you encounter any issues with your SEAOURA SR-616 LED Aquarium Light, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Power cable not properly connected or power outlet issue. | Check all power connections. Ensure the power adapter is securely plugged into a working outlet. |
| Timer function is not working correctly. | Timer was reset by pressing another button after setting. | Re-set the timer. Ensure no other buttons are pressed after setting the timer to avoid resetting the cycle. |
| Light is not as bright as expected. | Brightness level is set too low. | Use the 'On/Off & Brightness' button (percentage symbol) to increase the overall brightness. |
| Only blue lights are on, or only white/colored lights are on. | Specific color channel is turned off or dimmed. | Press the 'W' button to adjust white/colored lights or the 'B' button to adjust blue lights. If in 'All lights on' mode, you may need to turn off one color channel first to isolate the other. |
| Light is flickering. | Loose connection or power supply issue. | Check all connections. Try plugging into a different power outlet. If the issue persists, contact customer support. |
7. Specifications
Detailed technical specifications for the SEAOURA SR-616 LED Aquarium Light:
| Feature | Detail |
|---|---|
| Model Name | Aquarium light |
| Model Number | SR-616 |
| Size (for tank) | 18W for 24-30 inch tank |
| Wattage | 18 Watts |
| Brightness | 1260 Lumens (Maximum) |
| Light Color | White, Red, Pink, Green, Blue (Full Spectrum) |
| Color Temperature | 6500 Kelvin |
| Color Rendering Index (CRI) | 89.00 |
| Product Dimensions | 3.4"D x 22.83"W x 0.47"H |
| Item Weight | 2 pounds (0.91 Kilograms) |
| Power Source | Corded Electric |
| Voltage | 20 Volts (DC) |
| Material | Acrylonitrile Butadiene Styrene (ABS), Metal, Plastic |
| Finish Type | Painted |
| Mounting Type | Bracket Mount |
| Water Resistance Level | Not Water Resistant |
| Special Feature | Corded, Timer, Blue Light, Dimmable |
For more detailed energy information, please refer to the EPREL database: https://eprel.ec.europa.eu/qr/1893153
8. Warranty & Support
For warranty information and customer support, please refer to the product packaging or contact SEAOURA directly through their official channels. Keep your purchase receipt for any warranty claims.
Online Support: Visit the SEAOURA Store on Amazon for additional product information and support resources.







