Fluval LED Reef 4.0 Nano Light 25w

The Fluval LED Reef 4.0 Nano Light – 25W is a powerful, compact lighting solution designed specifically for small reef aquariums. Fluval’s advanced LED technology delivers impressive PAR output and a balanced spectrum tailored to support healthy coral growth, enhanced colour, and natural behaviour in both SPS and LPS corals.

Through the FluvalSmart App, this light connects via Bluetooth, giving users full control over colour channels, intensity, daily schedules, and custom photoperiods. Smooth sunrise and sunset transitions help replicate natural reef conditions, reducing stress on fish and corals.

The Reef 4.0 Nano features a slim, durable aluminium body for efficient heat dissipation and long-lasting performance. Its compact size makes it ideal for nano reefs, pico aquariums, coral frag tanks, and small marine displays where high-quality lighting is essential.

With full-spectrum output—including the vital blue and actinic wavelengths—this 25W light provides everything your corals need for growth, health, and colour development.

• 25W high-output nano reef LED lighting system

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

• Suitable for SPS, LPS, and soft corals

• Bluetooth programmable via the FluvalSmart App

• Adjustable spectrum, intensity, and photoperiods

• Sunrise/sunset and gradual ramping functions

• Full-spectrum LED matrix with strong PAR output

• Slim, compact design ideal for nano and desktop reefs

• Aluminium construction for excellent heat management

• Perfect for nano reef aquariums, frag tanks, and marine desktops