Fluval Reef 4.0 Nano LED Light – 25W Full Spectrum

The Fluval Reef 4.0 Nano LED Light – 25W is a compact, high-intensity reef light designed for nano marine aquariums and coral systems. It delivers a powerful combination of spectrum, PAR output, and app-based control, making it an ideal choice for small reef tanks that still demand serious lighting performance.

Using Bluetooth connectivity through the FluvalSmart App, the Reef 4.0 Nano offers complete control over individual colour channels, daily lighting cycles, brightness levels, and custom reef schedules. Smooth sunrise and sunset transitions help create a natural environment for fish and corals, reducing stress and promoting healthier behaviour.

The 25-watt LED panel provides a full spectrum tailored for both SPS and LPS corals, including essential blue and actinic wavelengths required for vibrant colouration and strong skeletal growth. Its slim, modern design allows it to fit neatly above nano systems without taking up space or adding unnecessary bulk.

Built with a durable aluminium body for efficient heat management, the Fluval Reef 4.0 Nano Light delivers stable output and long service life—ideal for nanos, pico reefs, coral frag tanks, or compact marine displays.

• 25W full-spectrum nano reef LED light

• Dimensions: 17.8 cm (L) × 12.7 cm (W) × 2.5 cm (H)

• Supports SPS, LPS, and soft coral growth

• Bluetooth-enabled and controlled via the FluvalSmart App

• Adjustable spectrum, daily cycles, and intensity settings

• Gradual sunrise/sunset functionality

• Strong PAR output suited to demanding coral species

• Compact aluminium housing for better heat dissipation

• Ideal for nano reefs, frag tanks, and small marine aquariums