Astro Lighting 1392017 Void 55 1392017 Matt White Trimless Fire-Rated Downlight

Astro Void 55 1392017 Matt White Trimless Fire-Rated Downlight

Create a clean, uninterrupted ceiling finish with the Astro Void 55 1392017, a Matt White trimless recessed downlight designed for modern bathrooms and contemporary interiors.

Unlike a conventional downlight with a visible bezel, the Void 55 is installed before the final plaster skim. Once plastered into the ceiling, the fitting creates a discreet circular opening with no prominent surface trim, helping the light blend smoothly into minimalist interiors.

Its IP65 protection, bathroom-zone approval and 90-minute fire rating make it a strong choice for customers searching for a trimless bathroom downlight, fire-rated plaster-in spotlight, IP65 GU10 ceiling light or minimal recessed downlight for modern homes.

Seamless Plaster-In Ceiling Finish

The Astro Void 55 must be installed before the ceiling receives its final plaster skim.

The trimless frame is fixed into the new ceiling, after which plaster is applied up to the edge of the fitting. When correctly finished and decorated, only the compact circular light opening remains visible.

This installation style is particularly suitable for:

• Minimalist bathrooms
• Contemporary en-suites
• Modern kitchens
• Luxury residential interiors
• Hotel bathrooms
• Apartment developments
• Hallways and corridors
• Living and dining spaces
• High-end refurbishment projects
• Clean architectural ceiling designs

Because the plastering process forms part of the installation, the Void 55 is best planned before the ceiling is completed. It is not intended as a simple replacement for a standard downlight fitted through an already finished ceiling.

Matt White Architectural Finish

Product code 1392017 is supplied in Matt White.

The neutral finish allows the fitting to blend naturally into most white or pale ceilings. Once installed and plastered correctly, the visible downlight opening creates a subtle architectural appearance without the contrasting rim associated with a conventional metal bezel.

Matt White works particularly well with:

• White plaster ceilings
• Minimalist bathroom designs
• Neutral interior colour schemes
• Contemporary apartments
• Luxury hotel interiors
• Modern kitchens
• Clean hallway lighting layouts
• Monochrome bathrooms
• Scandinavian-inspired interiors
• High-end residential projects

Astro also lists a Matt Black Void 55 under product code 1392018 for darker or contrasting ceiling schemes.

Compact 55mm Visible Light Opening

The Astro Void 55 creates a compact circular visible aperture approximately 55mm in diameter.

This small opening helps the downlight remain discreet, especially when several fittings are arranged across a ceiling. The reduced visual presence can produce a calmer and more refined result than larger decorative downlights.

The technical drawing identifies:

• Visible circular aperture: approximately 55mm
• Ceiling cut-out: 70mm
• Trimless plastering frame diameter: approximately 121mm
• Installation body height: approximately 163mm
• Recess depth: 163mm

Measurements should be checked against the physical product and current installation instructions before the ceiling is cut or plastered.

Replaceable GU10 LED Lamp

The Astro Void 55 uses one replaceable GU10 LED lamp, which is sold separately.

Astro specifies:

• Maximum lamp power: 6W LED GU10
• Maximum lamp length: 58mm
• Lamp sold separately
• Brightness dependent on the lamp selected
• Colour temperature dependent on the lamp selected
• CRI dependent on the lamp selected
• Beam angle dependent on the lamp selected
• Dimming dependent on the lamp selected

Astro lists its 4.1W, 2700K dimmable GU10 LED lamp as a compatible option. Other compatible lamps may be used provided they remain within the 6W power and 58mm length restrictions.

Choose the Right Beam Angle

The beam angle is determined by the GU10 LED installed.

A narrower-beam GU10 can be used to create more concentrated accent lighting, while a wider-beam lamp can distribute light across a broader area.

Customers can select a lamp based on the intended application:

• Narrower beam for architectural features
• Medium beam for general bathroom lighting
• Wider beam for more even room illumination
• High-output GU10 for brighter task areas
• Lower-output lamp for relaxed ambient lighting

The Void 55 itself is fixed rather than adjustable, so the selected lamp beam points directly downwards.

Fixed Recessed Downlight

The Astro Void 55 does not tilt or rotate.

Its fixed orientation is ideal for customers who want clean, consistent downward illumination across a ceiling. Several fittings can be positioned in a planned grid or lighting layout to provide balanced coverage throughout the room.

The fixed design is suitable for:

• General bathroom illumination
• Shower-room ceiling lighting
• Hallway lighting
• Kitchen circulation areas
• Hotel corridors
• Residential living spaces
• Repeated architectural downlight layouts

For angled artwork lighting or directional task lighting, an adjustable downlight would be more appropriate.