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Leddy Slim Marine 10W

Aquael Leddy Slim Marine 10W is Aquael's fixed-spectrum 10 W Marine lamp for 50–70 cm open tanks.

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Overview

Aquael Leddy Slim Marine 10W is an edge-mounted marine aquarium luminaire engineered by Aquael to provide dependable overhead illumination for open saltwater setups. Designed to combine a minimalist flat profile with functional simplicity, this lighting fixture belongs to the genuine catalog lineup of standard Marine editions comprising the legacy five-watt version rated at 10 W in the technical table, alongside the ten-watt, thirty-two-watt, and thirty-six-watt editions. Built with a flat glass profile designed to resist corrosion and facilitate routine exterior cleaning, the unit comes supplied complete and ready for direct indoor use. Certified under ingress protection code IPX7, the luminaire is strictly intended for operation above water and must never be submerged. Maintaining a minimum clearance of 15 mm above the water surface prevents accidental fluid contact during standard operation. Requiring matching electrical supply voltage and frequency as indicated on the manufacturer nameplate, the appliance offers dedicated solid-state illumination for home marine aquariums.

Intended use and selection

This lighting system is specifically created for marine hobbyists maintaining open saltwater aquarium environments requiring steady illuminated conditions for livestock development. Designed for open tank configurations having widths between 50 and 70 cm, the fixture provides targeted overhead lighting suitable for saltwater aquariums and coral growth without unnecessary structural complexity. It suits aquarists seeking a straightforward fixed-output marine solution without complicated wireless connections or multi-channel controls. While Aquael specifies this lighting for saltwater systems and general coral development, biological requirements vary considerably among different marine invertebrates, making individual lighting assessments and ongoing livestock observation essential. The fixture serves effectively over compatible open glass tanks, illuminating saltwater fauna while preserving an uncluttered overhead aesthetic across diverse home marine aquarium displays.

How it works

The luminaire operates by delivering a fixed marine spectral output characterized by strong white light rated at 10000 K, providing dedicated illumination for marine organisms. Unlike multichannel or programmable fixtures, this standard Marine version does not feature Day and Night modes, actinic channel switching, integrated dimming, timer scheduling, or wireless Link application control. It functions as a single-spectrum device powered directly from standard mains electricity matching the voltage and frequency specified on the rating label. The integrated solid-state light source is permanently sealed inside the flat housing and cannot be independently replaced, necessitating replacement of the complete luminaire at the end of source operational life. Electrical management relies on the intact external power cord and internal circuitry to maintain constant illumination throughout the active photoperiod.

Compatibility

Compatibility focuses strictly on open saltwater aquariums with glass wall widths spanning from 50 to 70 cm, ensuring stable mechanical positioning across approved tank dimensions. The luminaire must remain positioned exclusively above the open aquarium, preserving at least 15 mm of vertical clearance above the highest water level to adhere to its IPX7 protection index. Because official technical documentation does not establish rigid quantitative PAR thresholds, recommended photoperiods, or watts-per-litre ratios for these standard luminaires, total biological adequacy depends heavily upon water column depth, coral species requirements, fixture placement height, and potential companion lighting fixtures. The fixture is entirely incompatible with enclosed aquarium canopies and must never be subjected to water submersion, excessive moisture accumulation, or unauthorized structural modifications.

Installation

Installation onto the aquarium is executed using adjustable opposing side brackets, adapting the luminaire securely to the designated glass walls of the open aquarium. Models equipped with sliding brackets are mounted onto opposite side panels and adjusted horizontally to span the tank width, whereas the compact model secures its dedicated holder directly onto a single chosen tank wall edge. Prior to setup, inspect the glass housing, external power cord, switch, and mounting components to confirm structural integrity, ensuring that supports remain fully seated and stable. Maintain a minimum distance of 15 mm between the luminaire base and the water surface, and position the fixture so that prolonged direct viewing closer than 0.25 m is avoided. Verify that the power supply matches the official nameplate specifications before connecting the plug.

Maintenance and safety

Routine maintenance requires disconnecting the luminaire from electrical mains before performing any handling or cleaning operations. Furthermore, whenever placing hands into the aquarium water, the aquarist must disconnect all immersed electrical devices within the system to ensure complete operational safety. Cleaning involves gently wiping the accessible exterior flat glass surface without opening or dismantling the sealed housing, with maintenance frequency determined by dust accumulation and salt spray rather than arbitrary calendar schedules. The external flexible power cord cannot be repaired or replaced; if any cord damage occurs, the entire luminaire must be safely discarded in accordance with safety standards. Disassembly or unauthorized modifications beyond regular cleaning procedures violate safety requirements and completely void the official manufacturer guarantee.

Strengths and limitations

Key functional strengths of the luminaire include its slim flat edge-mounted form factor, dedicated fixed marine spectrum at 10000 K, verified tank span compatibility from 50 to 70 cm, and simple direct operation without complicated setup procedures. The product includes an official manufacturer guarantee of 24 months from the purchase date, governed by standard Aquael warranty terms and conditions. Primary practical limitations involve its fixed single spectrum, absence of Day and Night cycles, lack of an independent actinic channel, and absence of Link wireless connectivity or app-based scheduling. Overall illumination performance and biological outcomes depend on specific tank depth, individual coral needs, fixture placement, and supplementary lighting sources, leaving habitat planning and ongoing livestock observation to the direct responsibility of the marine aquarist.

Verified data

Verified data
Official modelAquael Leddy Slim Marine 10W
Rated power10W
Aquarium width50–70cm
Spectrum10000K white
Intended useopen saltwater aquariums
Control typestandard Marine fixed spectrum with direct operation
Mountingadjustable opposing side brackets
Environmentmounted on tank-wall edges above an open aquarium
Bodycorrosion-resistant, easy-to-clean glass
IP protectionIPX7
Water clearance15mm
Indoor useindoor use only
Power supplyvoltage and frequency must match luminaire nameplate
Cablediscard luminaire if external cord is damaged
Light sourcereplace complete luminaire at end of light-source life
Maintenance disconnectdisconnect from power before maintenance
Tank safetydisconnect all immersed devices before putting hands in water
Direct viewingdo not stare at operating light source
Viewing distance0.25m minimum for prolonged viewing
Supplycomplete ready-to-use lamp and user manual
Guarantee24months from purchase, subject to terms
Day & Nightno Day/Daybreak/Night modes
Actinicno separate Actinic channel
Linkno Link, Wi-Fi or app control
Sizingadequacy depends on tank depth, coral needs, placement and other lighting

Sources consulted

Reviewed on 2026-08-31

  1. Aquael Leddy Slim family instruction manual

    Aquael Sp. z o.o. · Source: official manual

  2. Aquael Leddy Slim bracket revision notice

    Aquael Sp. z o.o. · Source: official product

  3. Aquael Leddy Slim Marine official family leaflet

    Aquael Sp. z o.o. · Source: official product