- 🌈 WRGB LED LIGHTING: White, red, green and blue LEDs provide multi-colour illumination that highlights betta fish, aquatic plants and aquarium décor.
- ⏱️ BUILT-IN TIMER CONTROL: The in-line controller provides scheduled lighting for a more consistent aquarium routine. Available timer durations should be confirmed from the supplied instructions.
- 🔆 ADJUSTABLE BRIGHTNESS: Dimmable lighting allows the intensity to be changed according to the aquarium, surrounding room light and livestock response.
- 🐠 FOR 1–3 GALLON TANKS: Compact 4W design intended for betta aquariums, nano tanks and small planted displays within the manufacturer’s stated capacity range.
- 🔌 USB-POWERED CLIP-ON DESIGN: Attaches to the edge of a compatible aquarium and uses a flexible arm for positioning. USB power offers convenient connection to a suitable power source.
Petta Clip-On Aquarium Light for Nano Fish Tanks
The Petta clip-on aquarium light provides compact WRGB illumination for 1–3 gallon betta tanks, nano aquariums and small planted displays. Its 4W LED head combines adjustable brightness, colour-changing functionality and an in-line timer controller.
The clip-on mount saves space around small aquariums, while the flexible neck allows the light head to be positioned over the intended viewing area.
WRGB LED Colour Combination
The LED arrangement incorporates white, red, green and blue light. Together, these colours create a broader visual spectrum than a single-colour lamp and can highlight different tones in fish, plants, substrate and aquarium decorations.
The light is intended to improve aquarium illumination and visual presentation. It should not be described as a guaranteed solution for plant growth, fish health or algae prevention.
Lighting for Betta and Nano Aquariums
Small aquariums can react quickly to changes in light and temperature. Begin with moderate brightness and a limited daily schedule, then observe the fish and plants before making further adjustments.
Avoid sudden transitions from complete darkness to maximum brightness when possible. Turning on the room light before the aquarium lamp can provide a gentler transition for sensitive fish.
Adjustable Brightness
The in-line controller allows the output to be dimmed according to the aquarium setup. Lower intensity may be useful in a lightly planted betta tank, while a brighter setting may improve viewing in a planted display.
The ideal level depends on:
- Aquarium depth
- Plant species
- Existing room light
- Distance between the lamp and water
- Algae growth
- Fish behaviour
- Daily lighting duration
Observe the Aquarium
If fish repeatedly hide, appear stressed or avoid the illuminated area, reduce the brightness or shorten the lighting period. Excessive light may also contribute to unwanted algae when combined with available nutrients.
Integrated Timer Function
The timer supports a repeatable lighting routine without requiring the lamp to be switched manually at the same time every day.
The source listing confirms timer functionality but does not provide a complete schedule table. Use the controller markings and supplied instructions to select the desired duration rather than assuming unsupported timer intervals.
Establishing a Lighting Schedule
A consistent schedule is generally more useful than leaving the lamp on continuously. Choose a duration appropriate for the livestock and plants, then monitor the aquarium before increasing either brightness or operating time.
Timer and Power Interruptions
Some USB aquarium lights may reset after being unplugged or after a power interruption. Confirm the timer setting whenever the power supply is disconnected, moved or switched off.
Do not assume that the previous schedule has been retained unless the supplied instructions specifically confirm memory functionality.
Clip-On Mount with Flexible Positioning
The clip attaches the light to the rim of a compatible small aquarium. The flexible neck allows the LED head to be directed towards the centre of the tank or a planted section.
Before installation, confirm that the clip opens sufficiently for the aquarium wall or frame and can grip it without damaging the tank.
Installation Guidance
- Switch off and disconnect the light.
- Select a dry, stable section of the aquarium rim.
- Attach the clip firmly without overtightening it against the glass or acrylic.
- Adjust the flexible arm so the lamp is positioned over the tank.
- Route the cable away from water and create a drip loop.
- Connect the USB plug to a compatible power source.
- Test the colour, brightness and timer controls.
- Confirm that the lamp and cable cannot fall into the aquarium.
Confirm Rim Compatibility
The listing does not specify a maximum glass or acrylic thickness. Measure the tank rim and inspect the clip before installation, particularly on framed, curved or unusually thick aquariums.
USB-Powered 4W Design
The lamp operates through a USB connection and has a listed power rating of 4 watts. Use a USB power source that meets the requirements printed on the product or packaging.
The Amazon source does not clearly confirm that a wall adapter is included. Avoid promising an adapter as part of the package unless it appears in the received product’s contents list.
Product Specifications
- Brand: Petta
- Product type: Clip-on aquarium LED light
- Selected colour: Black Timer
- Light type: Dimmable WRGB LED
- LED colours: White, red, green and blue
- Rated power: 4W
- Recommended aquarium size: 1–3 gallons
- Suggested applications: Betta tanks, nano aquariums and small planted tanks
- Control type: In-line controller
- Functions: Colour changing, brightness adjustment and timer
- Power connection: USB
- Mounting type: Clip-on
- Housing material: Acrylonitrile butadiene styrene (ABS)
- Package dimensions: 3.62 × 3.58 × 2.44 in
- Package weight: 2.89 oz
- Model number: Y200-4W-W
- Manufacturer: Petta
Aquarium Lighting Safety
Keep Electrical Components Dry
The listing does not identify the lamp, controller or USB connector as submersible. Treat all electrical components as non-submersible unless the supplied manual expressly states otherwise.
Important Safety Guidance
- Install and adjust the light only with dry hands.
- Keep the controller, USB connector and power source away from water.
- Create a drip loop in the cable below the electrical connection.
- Do not place the USB adapter directly beneath or beside the aquarium.
- Unplug the light before aquarium maintenance.
- Never immerse the lamp, controller, cable connection or USB plug.
- Do not operate the product if the housing or cable is damaged.
- Prevent condensation from travelling along the cable towards the power source.
- Keep the lamp away from splashing filters and air-stone spray.
- Do not cover the light while it is operating.
- Stop use if the product becomes unusually hot, flickers or develops a damaged connection.
Cleaning and Maintenance
Disconnect the light before cleaning. Wipe the exterior gently with a soft, dry cloth. For mineral deposits, use a slightly damp cloth while preventing moisture from entering the housing, controller or connections.
Do not spray cleaner directly onto the lamp and do not use abrasive products. Allow every component to dry fully before reconnecting power.
Regularly inspect the clip, flexible arm, cable and USB connection to ensure that the light remains securely positioned above the aquarium.
