The Fluval Reef 4.0 LED is a premium lighting solution designed to optimise coral growth, colour vibrancy, and overall health in saltwater aquariums. Engineered in Germany, this full-spectrum lighting system features a critical actinic range to support photosynthesis and maximise the visual appeal of your aquarium.

The Reef 4.0 is controlled via the FluvalConnect mobile app, offering complete customisation of independent colour channels, programmable 24-hour light cycles, and dynamic special effects. Choose from several preset environments or design your own tailored lighting setup. Built for durability, it boasts IP67-rated protection against water, moisture, and dust, along with a high-quality glass lens that delivers long-lasting, crystal-clear illumination.

With versatile mounting options including extendable brackets, riser brackets, and an optional suspension kit, the Fluval Reef 4.0 LED is designed for ease of installation and adaptability to various aquarium setups.

Key Features:

• Full-spectrum lighting: Supports coral photosynthesis, growth, and vibrant colour display.
• Customisable control: Adjust independent colour channels and lighting cycles via the FluvalConnect app.
• Programmable 24-hour cycle: Simulate natural sun and moonlight phases.
• Preset environments: Choose from ready-to-use profiles or customise your own settings.
• Durable design: IP67-rated protection with a high-quality glass lens for reliability and performance.
• Efficient heat dissipation: Aluminium alloy frame ensures optimal performance and longevity.
• Versatile mounting options: Extendable brackets and riser brackets included; suspension kit sold separately.

Available Variations:

• 22W (38-63 cm) – Reef 4.0 LED for compact aquariums.
• 32W (59-89 cm) – Medium-sized option for saltwater tanks.
• 46W (88-126 cm) – Ideal for larger aquariums.
• 59W (117-155 cm) – Powerful lighting for expansive setups.

What’s Included:

• LED light with 2m line cord
• Extendable riser brackets
• Power supply

The Fluval Reef 4.0 LED transforms your saltwater aquarium into a thriving underwater world, combining advanced features with user-friendly customisation to create a truly exceptional aquatic experience.

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Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.