Introduction
Thank you for choosing the Pawfly PSTL-12 12-Inch Aquarium LED Light. This manual provides essential information for the safe and efficient operation of your new aquarium light. Please read it thoroughly before use and retain it for future reference.
Safety Instructions
- Always disconnect the power supply before performing any maintenance or installation.
- This product is designed for indoor use in aquariums only.
- Ensure the power cord and adapter are not damaged. Do not operate if damaged.
- Do not attempt to open or modify the light unit. This will void the warranty.
- Keep out of reach of children.
- The light unit is IPX8 waterproof, meaning it can be fully submerged. However, the controller and power adapter are not waterproof and must be kept dry.
Package Contents
Verify that all items are present in the package:
- Pawfly PSTL-12 Aquarium LED Light
- Power Adapter with Integrated Controller
- Suction Cups (for mounting)
- Velcro Strips (for mounting)
- User Manual (this document)
Product Overview
The Pawfly PSTL-12 Aquarium LED Light features a full spectrum of light to support aquatic life and enhance the visual appeal of your tank. It includes multiple operating modes and adjustable settings for customization.

Figure 1: Submersible Tube Light Dimensions. The light measures 12 inches (30.6 cm) in length, with a diameter of 1.16 inches (3 cm) for the light tube and 0.6 inches (1.5 cm) for the mounting ends.

Figure 2: Full Spectrum Lighting. This light provides a full spectrum of light, including 6500K white, 450-495nm blue, 495-570nm green, and 620-750nm red light, with a Color Rendering Index (CRI) of 98. This ensures accurate color reproduction and supports healthy aquatic plant growth.

Figure 3: Enchanting Background Light. The multi-colored LEDs create mesmerizing underwater scenes, enhancing the visual pleasure of your aquarium.
Setup
Mounting the Light
The Pawfly Aquarium LED Light offers two mounting options: suction cups for direct attachment to the tank glass or Velcro for flexible placement.

Figure 4: Easy Installation. The light can be fixed using either the provided suction cups, which stick tightly to smooth surfaces, or Velcro strips for versatile placement.
Using Suction Cups:
- Attach the suction cups to the ends of the light unit.
- Press the suction cups firmly against a clean, smooth surface inside or outside your aquarium glass.
Using Velcro Strips:
- Separate the two pieces of the Velcro strip.
- Remove the white adhesive backing from both pieces.
- Stick one piece to the desired location on your aquarium (e.g., under the lid, on the side).
- Stick the other piece to the light unit.
- Align and press the light unit onto the aquarium to secure it.
Connecting Power
Connect the power adapter to the light unit, then plug the adapter into a standard electrical outlet. Ensure the connection is secure.
Operating Instructions
The light is controlled via an inline controller with a digital display and several buttons.

Figure 5: Controller Functions. The controller allows for setting time, adjusting brightness, selecting modes (24/7, D/N, DIY), and turning the light on/off.
Setting the Current Time
- Hour Button: Long press to set the current hour. Short press to increase the hour.
- Minute Button: Long press to set the current minute. Short press to increase the minute.
Adjusting Brightness
- Short press the Hour button to increase brightness (10 levels).
- Short press the Minute button to decrease brightness (10 levels).
Operating Modes
1. 24/7 Natural Mode
This mode simulates a natural day-night cycle, automatically adjusting light intensity and color throughout the day.

Figure 6: 24/7 Natural Day-Night Cycle. The light automatically turns on at 6 a.m. and off at 10 p.m., simulating sunrise, daylight, sunset, and moonlight.
- Press the 24/7 button to activate this mode.
- The light will automatically start at 6 a.m. and turn off at 10 p.m.
2. D/N Mode (Daytime & Night Mode)
Customize the duration of daytime and nighttime lighting.

Figure 7: Daytime & Night Mode. Simulate natural daylight and moonlight with customizable durations. Daytime options: 6h, 8h, 10h. Nighttime options: 2h, 3h, 4h.
- Press the D Timer button to cycle through daytime durations: 6h, 8h, 10h.
- Press the N Timer button to cycle through nighttime durations: 2h, 3h, 4h.
3. DIY Mode (Single Color Effects)
Manually select specific colors and adjust brightness.

Figure 8: DIY Mode. Use the 'M' button to cycle through 9 single color effects and an RGB cycle mode. S-01 is Full Brightness, S-02 is Cool White, S-03 is Red, S-04 is Green, S-05 is Blue, S-06 is Cyan, S-07 is Pink, S-08 is Warm White, S-09 is Red, Green & Blue Cycles.
- Short press the M button to cycle through 9 single color effects and an RGB cycle mode.
- Use the Hour and Minute buttons (short press) to adjust brightness in this mode.
Power On/Off
- Short press the Power button (M button) to turn the light on or off.
Official Product Video
Video 1: Pawfly Aquarium LED Light 24/7 Fish Tank Light with Full Spectrum. This video demonstrates the features and functionality of the Pawfly Aquarium LED Light, including its 24/7 mode and full spectrum capabilities.
Maintenance
Cleaning
- Always unplug the light before cleaning.
- Wipe the light unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure the power adapter and controller remain dry during cleaning.
Waterproof Rating

Figure 9: IP68 Waterproof. The light unit is strictly sealed with silicone, allowing it to be fully submerged without damage or electrical leakage.
The light unit has an IP68 waterproof rating, meaning it is protected against continuous immersion in water. The clear board is strictly sealed with silicone to prevent moisture ingress. The solid aluminum shell aids in heat dissipation, ensuring longevity.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | No power supply; loose connection; faulty adapter. | Check power outlet. Ensure all connections are secure. Test with another outlet. Contact support if adapter is suspected faulty. |
| Timer function is not working correctly. | Incorrect time setting; mode conflict. | Verify the current time is set accurately on the controller. Ensure only one timed mode (24/7 or D/N) is active. |
| Light flickers or changes color unexpectedly. | Loose connection; water ingress (for non-waterproof parts); internal fault. | Check all connections. Ensure controller and adapter are dry. Discontinue use and contact support if problem persists. |
| Suction cups do not hold. | Surface is not clean or smooth; suction cups are old/damaged. | Clean the mounting surface thoroughly. Moisten suction cups slightly before applying. Replace if damaged. Consider using Velcro strips. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Pawfly |
| Model Number | PSTL-12 |
| Wattage | 6.5 watts |
| Light Source Type | LED (Full Spectrum: 6500K White, 450-495nm Blue, 495-570nm Green, 620-750nm Red) |
| Color Rendering Index (CRI) | 98 |
| Waterproof Rating | IPX8 (Light unit only) |
| Material | Plastic, Aluminum |
| Product Dimensions | 10 x 2 x 3 inches (Light unit: 12 inches length) |
| Item Weight | 8.4 ounces |
| Power Source | Corded Electric |
| Mounting Type | Rack Mount (Suction Cups, Velcro) |
| Special Features | 24/7 Natural Mode, D/N Mode, DIY Mode, Adjustable Brightness (10 levels) |
Warranty and Support
Pawfly products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official Pawfly website. Please retain your proof of purchase for warranty claims.





