Introduction
Thank you for choosing the NICREW ClassicLED Aquarium Light. This light is designed to provide optimal illumination for your fish and aquatic plants, enhancing the visual appeal of your aquarium. It features energy-efficient white and blue LEDs with adjustable brightness and multiple lighting modes to suit various aquatic environments.

Image: The NICREW ClassicLED Aquarium Light, a long, black LED fixture with white and blue lights, featuring extendable brackets on each end.
Safety Instructions
Please read and follow all safety instructions carefully to prevent injury or damage to the product or your aquarium. Failure to do so may void the warranty.
- Ensure the light is securely mounted above the aquarium and cannot fall into the water.
- Always unplug the light from the power outlet before performing any maintenance, cleaning, or when placing hands in the aquarium water.
- Do not operate the light if it has a damaged cord or plug, or if it is malfunctioning or has been dropped or damaged.
- This product is designed for indoor use only. Do not expose to water or extreme temperatures.
- A glass or acrylic canopy is highly recommended to protect the light from moisture and extend its lifespan.
- Keep out of reach of children.
Package Contents
- NICREW ClassicLED Aquarium Light Fixture
- Extendable Mounting Brackets (2)
- Power Adapter
- Instruction Manual
Setup
- Attach the Brackets: Slide the extendable metal brackets onto each end of the light fixture. Ensure they are securely seated.

Image: A close-up of the light fixture showing arrows indicating how the adjustable metal brackets slide onto the ends for easy installation.
- Position the Light: Place the light fixture on top of your aquarium. Adjust the extendable brackets to fit the length of your tank (36 to 48 inches). It is highly recommended to use a glass or acrylic canopy between the light and the water surface to prevent moisture damage.

Image: A technical diagram illustrating the dimensions of the light fixture (34.2 inches long, 4 inches wide) and the extendable brackets, showing a total length of 48 inches when extended. Also shows the power adapter and its cable length.
- Connect Power: Plug the power adapter into the light fixture, then plug the adapter into a suitable electrical outlet.
Operating Instructions
The NICREW ClassicLED Aquarium Light features an inline controller for easy operation.

Image: A diagram illustrating the inline controller with three buttons (W, M, B) and showing 6 levels of white LED brightness, 3 lighting modes (White, Blue, White + Blue), and 6 levels of blue LED brightness.
- Power On/Off: Press the 'M' (Mode) button to cycle through the lighting modes or hold it to turn the light off.
- Select Lighting Mode:
- Press 'M' once for White & Blue LEDs (Daylight mode).
- Press 'M' again for Only White LEDs.
- Press 'M' a third time for Only Blue LEDs.
- Adjust White LED Brightness: When white LEDs are active (Daylight or Only White modes), press the 'W' button to cycle through 6 levels of brightness.
- Adjust Blue LED Brightness: When blue LEDs are active (Daylight or Only Blue modes), press the 'B' button to cycle through 6 levels of brightness.
- Timer Compatibility: This light can be integrated with NICREW single-channel timers (sold separately) for automated sunrise/sunset simulation and scheduled lighting cycles.
Video: A demonstration of the NICREW ClassicLED Aquarium Light's lighting modes and brightness adjustments using the inline controller. Shows switching between all LEDs, only blue LEDs, and only white LEDs, and then adjusting the brightness for both white and blue lights.
Maintenance
Regular maintenance ensures optimal performance and longevity of your aquarium light.
- Cleaning the Fixture:
- Always unplug the light before cleaning.
- Wipe the exterior of the light fixture with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Ensure the light is completely dry before plugging it back in.
- Moisture Prevention: If not already in use, consider installing a glass or acrylic canopy over your aquarium to protect the light from water splashes and humidity, which can significantly extend its operational life.

Image: A close-up view of the light fixture's inline barrel connector, highlighting its design to prevent moisture damage and featuring a "CAUTION: DO NOT IMMERSE IN WATER" label.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Power adapter not connected, power outlet malfunction, damaged cable. | Check all power connections. Test the outlet with another device. Inspect the power cable for damage. |
| LEDs are dim or flickering. | Incorrect brightness setting, power supply issue, moisture damage. | Adjust brightness using 'W' or 'B' buttons. Ensure power adapter is functioning correctly. Check for signs of moisture and ensure a canopy is used. |
| Only white or only blue LEDs are on. | Incorrect lighting mode selected. | Press the 'M' button to cycle through the available lighting modes until the desired mode is active. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | N13254 |
| Size | 36 - 48 inches (Extendable) |
| Light Fixture Dimensions | 34.2"L x 4"W x 1.7"H |
| Wattage | 25 Watts |
| Light Source Type | LED (White and Blue) |
| Number of Light Sources | 144 |
| Brightness | 1650 Lumens |
| Color Temperature (White LEDs) | 6500K |
| Wavelength (Blue LEDs) | 450nm |
| Mounting Type | Adjustable Side Mount |
| Material | Acrylic, Glass, Metal |
| Power Source | Corded Electric |
| Item Weight | 3.29 pounds |

Image: A chart detailing the specifications of the ClassicLED 36-48 inch light, including 120 white LEDs, 24 blue LEDs, PAR@12" in air (62), LUX@12" in air (3800), CRI (88), Beam Angle (120°), Efficacy (66 lm/w), Total Luminous Flux (1650 Lumens), and Total Power Consumption (25 Watt). A combined spectrum graph is also shown.
Warranty and Support
NICREW provides a hassle-free 12-month warranty for this product from the date of purchase. For any questions, concerns, or technical assistance, please contact NICREW customer service. Our team is available to provide 24-hour friendly customer support.
For more information or to contact support, please visit the official NICREW website or refer to the contact details provided in your product packaging.





