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DON´T BE A SQUARE
SIGN
SIGN – classic illumination that sets new standards. The round, seamlessly welded surface lights make a discreetly elegant impression but set unique accents in any space. In playing with various sizes and classic or unconventional arrangements, SIGN becomes a formative architectural element.
CLASSIC ILLUMINATION. REDEFINED.
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Elegance at its finest: the SIGN product family stands for timeless, circular design and outstanding architectural versatility. Whether as a subtle accent or a striking focal point, these seamlessly welded luminaires bring sophisticated lighting solutions to any space. With a wide range of sizes, mounting options, and design variations, SIGN integrates effortlessly into both classic and avant-garde environments. The SIGN family brings together two distinct subfamilies, each tailored to meet specific design and performance needs: SIGN EVO and SIGN DIVA.
SIGN EVO

SIGN DIVA

With a focus on efficiency up to 160 lm/W and streamlined functionality, SIGN EVO elevates the proven strengths of our original SIGN series to a new level—delivering powerful performance, advanced control options, and outstanding installation ease.
For those seeking creative freedom and expressive design, SIGN DIVA offers playful flexibility and dynamic adjustment possibilities, turning light into a design statement. What unites them is a shared commitment to uncompromising quality.
SIGN EVO
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SIGN EVO extends the capabilities of the SIGN family with advanced lighting technology and a focus on practical installation solutions. Maintaining the timeless circular design that defines the series, this subfamily combines powerful lighting performance, versatile control options, and outstanding efficiency. Whether for ambitious architectural projects or large-scale commercial applications, SIGN EVO offers a smart solution for modern lighting environments.
DESIGN & VARIANTS
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SIGN EVO is available in three distinct sizes—Ø400 mm, Ø570 mm, and Ø850 mm—ensuring perfect proportions for every room size and design scenario. Whether surface-mounted, suspended, or wall-mounted, the luminaires offer maximum versatility to create both direct and indirect lighting atmospheres.


The choice of Opal, Clear Microprism, or Microprism diffusers allows for tailored light effects, from soft ambient illumination to workplace-appropriate low-glare lighting solutions.
THE HIGH EFFICIENT ONE
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SIGN EVO is a lighting solution that deliver a efficiency up to 160 lm/W. Both the optimized output variant as well as the high output variant are engineered to meet this high standards, making them the ideal choice for projects where sustainability and operational cost savings are key. SIGN EVO optimized optical system and high-performance LEDs guarantee long-lasting efficiency and consistently low operating costs throughout the product lifecycle.

STRAIGHTFORWARD INSTALLATION
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Installation of the surface luminaires is fast and effortless thanks to a refined mounting system. Simply mount and twist the luminaire onto the canopy. The canopy additionally features an integrated cable channel, which allows for side cable entry — even when the ceiling outlet is not ideally positioned.
For pendants, a specially designed canopy conceals suspension grippers and supports minimal suspension heights for a clean, elegant appearance. A dedicated cover plate enhances the overall look and facilitates easy maintenance, keeping the luminaire free of dust and perfectly presentable.
LIGHTING TECHNOLOGY
SIGN DIVA
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The SIGN DIVA subfamily offers a unique combination of creative freedom and technical sophistication. Whether as a sleek pendant luminaire for lower ceiling heights or as a dynamic design element for walls and ceilings, SIGN DIVA opens up limitless possibilities for expressive lighting compositions.
TECHNICAL DESCRIPTION
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Pleasant general lighting with design options: the round SIGN luminaire is available in a range of sizes and colors, providing a discrete architectural accent.

TOOL-FREE ADJUSTMENT
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An ingeniuous patented adjustment system of the SIGN DIVA DANCER PLAY ensures a tool-free djustment in steps over 10°(range of +/- 50°).
INTERNAL COVER
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An internal cover ensures a continuous closure of the movement opening of the canopy during the rod adjustment. The light fitting itself is infinitely variable over 180°
STEPLESS HINGE
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A solid hinge with a precise friction system at the bottom of the road allows a stepless and tool-free adjustment over +/- 90°
KORONA FRAME & KORONA SHINE
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The inside of the KORONAA version with 51 mm height is available in 25 PROLICHT colors (KORONA FRAME). An optional coloured ring can be added to the standard range of SIGN DIVA DANCER of 37 mm, to create an special glowing KORONA SHINE effect.
BENEFITS
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Convincing benefits - standardized for all SIGN luminaires.
UNIQUE SPECIAL DECORATIVE OPTICS
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The in-house designed PCB boards equipped with special LED-chips ensure enhanced light transmission and perfect illumination with the OPAL DIFFUSER. A bright, glare-free light with an optimum UGR value, provided by a special MICROPRISMATIC cover, is a perfect solution for workplaces. In addition to the opal diffuser and microprism, PROLICHT offers two new decorative diffusers: The SPARKLING SECRET (SPS) cover with its sophisticated special structure emphasises the sparkling effect of the LEDs and guarantees powerful light transmission, as well as offering a perfect solution for hospitality environments. The VINTAGE INDUSTRIAL (VI) diffuser with a honeycomb prismatic touch provides an enjoyable lighting effect that creates a different look depending on the angle from which you are looking.

STEPLESS ADJUSTMENT SYSTEM


PLAYFUL SWIVELLING SYSTEM
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The new innovative SIGN DIVA DANCER range with sophisticated technology and an flexible swivelling system allows the designer to play with eye-catching compositions on both the ceiling and walls. The range comes in different sizes and with an adjustable 750 mm or 1500 mm rod. The light fitting itself is infinitely variable over 180°, while with a patented ingenious system, tool-free adjustment of the rod (+/-50° in steps of 10°) results in playful scenarios (SIGN DIVA DANCER). An additional wire suspension is forseen for diameters of 850 mm onwards or a tube length of 1500 mm. Set the light where you need it!
KORONA EFFECT SHINE & FRAME
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The idea for the KORONA feature came from a simple desire – to help designers create something unique for their project. A coloured transparent ring called the KORONA SHINE is lit up as a playful glowing element and is available in 6 colors (only fits the 37 mm height version). The KORONA FRAME is a second remarkable design element in which the diffuser is set back 15 mm into the light fitting, which illuminates the colored edges visible at the sides, producing a clear corona. The KORONA is available in 25+5 PROLICHT colors and has a height of 51 mm.


SOFT COLORFUL AURA INDIRECT LIGHTING
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Well-defined openings at the top of the surface mounted SIGN series emphasise a decorative AURA light effect up towards the ceiling. The choice of 6 integrated colored diffusers (red, green, blue, yellow, orange, white) allows the architect the create a floating light effect. The PPMA-covered LED openings on the top plate are designed in such a way as to ensure perfect DIRECT/INDIRECT illumination (50%-50%) for additional emphasis of the ceiling.
TIMELESS DESIGN. UNMATCHED VERSATILITY. PROVEN PERFORMANCE.
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The SIGN family stands for lighting solutions that transcend trends and create lasting impressions. Whether with the advanced efficiency of SIGN EVO or the expressive flexibility of SIGN DIVA, both subfamilies share a commitment to exceptional quality and design.
BRILLIANT LIGHT QUALITY FOR EVERY SPACE
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All SIGN luminaires feature a CRI above 90, ensuring exceptional color fidelity and vibrant, true-to-life lighting across every application. This high standard makes them ideal for environments where visual accuracy and atmosphere matter most.


MAXIMUM EFFICIENCY AT EVERY OUTPUT LEVEL
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The SIGN family combines advanced lighting technology with outstanding energy efficiency to meet diverse project requirements. From subtle ambient lighting to powerful illumination for large spaces, all variants deliver sustainable, cost-effective solutions. Thanks to optimized optical systems and high-performance LEDs, SIGN ensures long-lasting efficiency and low operating costs throughout the entire product lifecycle.
COLORFUL ACCENTS
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Available in a wide range of PROLICHT colors, the SIGN family adds vibrant accents or subtle tones to perfectly match any interior concept. Its powerful, uniform light distribution makes it ideal for illuminating large spaces such as offices, schools, and libraries, ensuring comfortable visual environments that support focus, productivity, and well-being.


CENTRAL SUSPENSION DIFFERENT COLOURED WIRES
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Central suspension, different coloured wires – The central suspension system allows the luminaire to subtly integrate into almost any interior. The power feed cable is available in 5 colours and offers a remarkable interplay of colours in combination with the colour of the SIGN light source. During the design process, Prolicht once again demonstrates its DNA, more specifically: eye-for-detail, making a difference and being unique. The suspension system is available as standard in 2 m and 6 m lengths.