LED underwater light for swim platforms/transom/hull blue color – code: L4475090 – Trem

Blue LED underwater light for swim platforms, transom mirror and hull (Trem L4475090)

The Trem LED underwater light in version blue color (code L4475090) is designed for installation on swim platforms, transom o hull, where an effect lighting and a construction suitable for the marine environment are required. The body is made of mirror-polished AISI 316 stainless steel and the lamp is designed to be completely watertight, so it can be installed above or below the water depending on the needs of the boat and the stern layout.

Features and construction details

Materials and finish

• AISI 316 stainless steel with finish mirror polished, suitable for nautical applications.
• Design intended for external mounting on stern or hull surfaces, with a neat appearance consistent with stainless steel accessories.

Light source

• High power LED.
• LED color: blue (variant L4475090).
• Number of LEDs: 3.
• LED angle: 25°.
• Luminous flux: 90 (as per variant table).

Alimentazione

• Power supply voltage: 9-32 V (as per variant table).

Sealing and installation in nautical environment

• Structure completely watertight.
• Installable above or below the water, depending on the mounting point and the desired result.

Product identification

• Brand / supplier: Trem (TR.EM S.R.L – Trecciatura Emiliana).
• Supplier product code: L4475090.

Typical onboard applications

This LED underwater light is suitable for various stern configurations and external areas of the boat, where lighting can have an aesthetic function and support visibility during maneuvers at anchor or in port (depending on installation and usage context).

• Stern transom: to illuminate the area immediately behind the stern and enhance the boat's line.
• Swim platforms: for a lighting effect near the bathing area and sea access.
• Hull: for dedicated installations, compatible with the design and mounting choices.

The possibility of mounting above or below the water makes the product flexible during refitting or outfitting, leaving the technician the choice of the most suitable placement.

Operational advantages

Construction oriented towards boating

The use of AISI 316 stainless steel and the finish mirror polished meet the typical requirements of external installations, where materials and finishes must integrate with onboard hardware and withstand marine conditions.

Versatile installation

The characteristic of being completely watertight allows installation in exposed positions, including mounting below the waterline when provided by the project. This allows choosing the lighting effect and placement based on the geometry of the stern and aesthetic preferences.

Directional lighting

The’LED angle of 25° indicates a concentrated light distribution, useful when a more defined beam on the area of interest is desired. The version blue is often chosen for atmospheric lighting and to enhance the profile of the boat at night.

Usage, notes, and installation tips

To achieve a neat and reliable result over time, it is advisable that the installation be carried out by personnel competent in onboard systems, following good wiring and sealing practices typical of the nautical environment.

Checks before installation

• System voltage control: make sure that the available power supply is within the range 9-32 V.
• Choice of installation point: evaluate the swim platform, transom, or hull based on cable passages, internal accessibility, and desired aesthetic result.
• Confirm variant: for this board the code is L4475090 with Blue LED.

During installation

• Sealing: even if the light is declared waterproof, always take care to seal the passage and fixing points according to the surface and exposure.
• Cable routing: protect cables in areas subject to rubbing or vibrations and maintain an orderly path towards the panel or power supply point.
• Orientation: consider the emission angle 25° to define the beam direction and the final effect.

Maintenance and care

• External cleaning: the mirror-polished finish can be maintained with regular cleaning, avoiding aggressive products not suitable for stainless steel.
• Periodic inspectionCheck periodically the fastenings and cable passages, especially after long periods of use or storage.

Note on series variants

The family includes variants with different LED colors and values listed in the table. This page is dedicated to the version blue L4475090. If you need a different color, check the related article code before purchasing.

FAQ – Frequently Asked Questions

Can this light be installed below the water level?

Yes. The product is indicated as completely waterproof and can be installed above or below the water, depending on the chosen mounting point.

What is the material of the body of the Trem L4475090 underwater light?

It is made of AISI 316 stainless steel with a mirror-polished finish.

What power supply does the L4475090 variant require?

The variants table shows a power supply range of 9-32 V.

How many LEDs does it have and what is the emission angle?

The L4475090 variant has 3 LEDs and a LED angle of 25°.

Does this sheet refer to the blue version?

Yes. This page is dedicated to the variant with blue LED color, Trem code L4475090.

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