Description
Fluval Plant Spectrum 4.0 LED Light 59W (110.5 – 148.1cm) — High-output light bar for large aquariums supporting lush plant growth in deep tanks
The Fluval Plant Spectrum 4.0 LED Light 59W (SKU: FLED83) is a high-output 59-watt Bluetooth-enabled light bar designed for large aquariums measuring 110.5 to 148.1 cm. Delivering exceptional photon output across 6 colour channels, it supports lush plant growth in deep tanks up to 150 cm wide.
Fully integrated with Bluetooth Mesh technology, it offers wireless control over daily photoperiods, light intensity, and custom colour spectrum balancing.
Usage & Application
When to Use
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6-Foot & Large Aquariums: Designed for large-scale planted display tanks.
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Deep Water Lighting: Penetrates deeper water columns to support ground-cover vegetation.
How to Use / Installation Process
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Extend side brackets to match tank width and settle fixture onto tank frame.
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Open the FluvalSmart App to connect via Bluetooth.
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Program 24-hour lighting sequences and adjust individual spectrum channels.
Product Specifications & Highlights
Key Features
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Maximum 59W PAR Output: Strong light energy output reaches the deepest tank corners. Powerful full-spectrum lighting for maximum plant growth, colour, and health. Customisable, independently controlled colour channels. Excellent CRI (Colour Rendering Index) renders vivid fish and plant tones for authentic, true-to-nature viewing.
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Independent Channel Tuning: Fine-tune Pink, Cyan, Blue, Yellow, and White LED channels. Operated exclusively via the FluvalConnect mobile app, which has a programmable 24-hour light cycle that adjusts sunrise, mid-day, dusk, and night settings to mimic natural sun and moon cycles. The mobile app also has preset environments – select from several convenient aquarium profiles.
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IP67 Waterproofing: Engineered for long-term endurance in humid environments. It has an IP67 rating for advanced water, moisture and dust protection, with a high-quality glass lens. Built using an aluminium alloy frame that dissipates heat evenly to improve lighting efficiency and longevity.
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Smooth Photoperiod Ramping: Prevents algae growth by providing gradual natural light cycles. Extendable brackets accommodate a range of aquarium widths for on-tank mounting. Riser brackets allow adjustable vertical positioning (included).
Please note: Optional suspension kit is sold separately (Item #A20482) and is not part of this product package.
Product Details
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Brand: Fluval (Germany)
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SKU: FLED83
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Barcode (GTIN/UPC): 0015561168885
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Product Type: Aquarium Lighting / Planted LED Fixtures
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Package Dimensions: 1270 mm (L) × 155 mm (W) × 70 mm (H)
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Gross Package Weight: 2400 g
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Target Environment: Freshwater Planted Aquariums
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Power & Output: 46 Watts, 90 CRI rating, 4,700 lumens, 7,500K colour temperature, and Size = 43–58″ inches / 110.5–148.1 cm
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LED Light Unit Protection: Advanced IP67-rated water, moisture and dust protection
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Package Includes: LED light with 2 m cord, Extendable riser brackets and AUS Power supply
Light Output Specification in Diagram Visual Graph:
- 90 CRI rating (Colour Rendering Index)
- 4,700 lumens
- 7,500K colour temperature
- Extreme PAR values through dual-angled lightboards provide a professional environment for demanding photosynthesis






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