{"id":40972,"date":"2026-07-29T16:45:23","date_gmt":"2026-07-29T14:45:23","guid":{"rendered":"https:\/\/hetzner.actilum.com\/24v-led-module-for-lightboxes-and-stretch-ceilings-technical-specifications-by-application\/"},"modified":"2026-07-29T16:48:17","modified_gmt":"2026-07-29T14:48:17","slug":"24v-led-module-for-lightboxes-and-stretch-ceilings-technical-specifications-by-application","status":"publish","type":"page","link":"https:\/\/hetzner.actilum.com\/en\/24v-led-module-for-lightboxes-and-stretch-ceilings-technical-specifications-by-application\/","title":{"rendered":"24V LED Module for Lightboxes and Stretch Ceilings: Technical Specifications by Application"},"content":{"rendered":"\t\t
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24V LED Module for Lightboxes and Stretch Ceilings: Technical Specifications by Application<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Frontline S-TW18 is a 24V<\/strong> linear LED module designed for backlighting projects where it is necessary to correctly identify the type of application.<\/p>

Although it can be used in lightboxes<\/strong>, stretch ceilings<\/strong>, backlighting, and general lighting, not all of these applications require the same technical specifications.<\/p>

In a lightbox<\/strong>, the priority is usually on the visibility of the graphic, uniformity across the diffuser, and integration into a thin profile.<\/p>

With a tensioned ceiling<\/strong>, the technical requirements are higher: the light can serve as ambient or general lighting, so factors such as power, efficiency, visual comfort, CRI, and spectral quality become even more important.<\/p>

For this reason, the Frontline S-TW18 should be evaluated not only based on its technical specifications, but also on how those specifications perform in each application.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Key Technical Specifications<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Parameter<\/th>\n Frontline S-TW18<\/th>\n <\/tr>\n <\/thead>\n
Dimensions<\/td>\n 600 \u00d7 20 \u00d7 6.7 mm<\/td>\n <\/tr>\n
Voltage<\/td>\n 24 V<\/td>\n <\/tr>\n
Power Consumption<\/td>\n 8 W \/ 13 W<\/td>\n <\/tr>\n
LED Color<\/td>\n 2,700K \u2013 6,500K<\/td>\n <\/tr>\n
Options available upon request<\/td>\n 2,700K \u2013 5,000K \/ 4,000K \u2013 6,500K<\/td>\n <\/tr>\n
Luminous flux<\/td>\n \u2248 928 lm \/ \u2248 1,456 lm<\/td>\n <\/tr>\n
Efficiency<\/td>\n \u2248 116 lm\/W \/ \u2248 112 lm\/W<\/td>\n <\/tr>\n
CRI<\/td>\n > 80<\/td>\n <\/tr>\n
Beam of light<\/td>\n 175\u00ba<\/td>\n <\/tr>\n
Dimmable<\/td>\n Yes<\/td>\n <\/tr>\n
Service life<\/td>\n> 56,000 h<\/td>\n <\/tr>\n
Tp max.<\/td>\n 65 \u00b0C<\/td>\n <\/tr>\n
LED<\/td>\n Mid-Power<\/td>\n <\/tr>\n
Protection<\/td>\n IP44 for indoor use<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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These specifications position the Frontline S-TW18 as a high-performance backlighting solution with a wide aperture and dynamic white capability.<\/p>

The key is to correctly interpret each piece of data depending on whether the project is a light box or a stretch ceiling.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Downloadable datasheet\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Frontline Installation Manual<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Technical reading for lightbox<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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In a lightbox, the main goal is usually to achieve a visible, uniform, and stable image.<\/p>

The light is positioned behind a diffuser\u2014usually made of fabric or opal\u2014and its purpose is to make the image stand out without casting shadows, creating visible spots, or producing areas of low intensity.<\/p>

In this context, the most relevant technical data are:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Criterion<\/th>\nRelevance in the lightbox<\/th>\n<\/tr>\n<\/thead>\n
Homogeneity<\/td>\nVery high<\/td>\n<\/tr>\n
175\u00b0 beam angle<\/td>\nVery useful for covering surfaces<\/td>\n<\/tr>\n
Power<\/td>\nImportant, but in line with the graph<\/td>\n<\/tr>\n
Dynamic White<\/td>\nUseful in special cases, but not always essential<\/td>\n<\/tr>\n
High CRI<\/td>\nThis is not usually the primary criterion<\/td>\n<\/tr>\n
Energy Efficiency<\/td>\nUsually secondary to visibility<\/td>\n<\/tr>\n
Thin<\/td>\nVery important for compact cases<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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For lightboxes, the Frontline S-TW18 is a good choice when you’re looking for linear, uniform, and controlled backlighting, especially in thin lightboxes.<\/p>

The 8W<\/strong> version is usually the most balanced option for this type of application.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Technical Specifications for Tensioned Ceilings<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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With a tensioned ceiling, the role of light changes.<\/p>

It is no longer just a matter of making a graphic visible, but of illuminating a space or creating a luminous surface that directly influences the perception of the environment.<\/p>

In this case, the technical criteria are more stringent:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Criterion<\/th>\nRelevance in Tensioned Ceilings<\/th>\n<\/tr>\n<\/thead>\n
Light Output<\/td>\nHigh<\/td>\n<\/tr>\n
Energy Efficiency<\/td>\nHigh<\/td>\n<\/tr>\n
Dynamic White<\/td>\nVery useful for scenes and comfort<\/td>\n<\/tr>\n
CRI<\/td>\nMore important than in the lightbox<\/td>\n<\/tr>\n
Spectral Quality<\/td>\nEssential for demanding projects<\/td>\n<\/tr>\n
Harmony Between Warm and Cool<\/td>\nImportant for a balanced visual mix<\/td>\n<\/tr>\n
Homogeneity<\/td>\nVery high<\/td>\n<\/tr>\n
Visual Comfort<\/td>\nPriority<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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For stretch ceilings, the 13W<\/strong> version is usually the best choice when more light is needed.<\/p>

However, it is important to note that the Frontline S-TW18 has an overall CRI of >80<\/strong>. If the project requires a CRI of<\/strong> 90<\/strong>, 95<\/strong>, or 98<\/strong>, full-spectrum lighting, or an advanced circadian lighting solution, it will be necessary to evaluate specific configurations or solutions with higher chromatic performance. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Power options: 8W and 13W<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Frontline S-TW18 is available in two main versions:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Version<\/th>\n Power<\/th>\n Approx. Flow<\/th>\n Approx. efficiency<\/th>\n Recommended reading<\/th>\n <\/tr>\n <\/thead>\n
S-TW18 8 W<\/td>\n 8 W<\/td>\n \u2248 928 lm<\/td>\n \u2248 116 lm\/W<\/td>\n Lightbox and efficient backlighting<\/td>\n <\/tr>\n
S-TW18 13 W<\/td>\n 13 W<\/td>\n \u2248 1,456 lm<\/td>\n \u2248 112 lm\/W<\/td>\n Stretch ceilings or higher brightness<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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The 8W<\/strong> version is ideal for many light boxes that require efficient, stable, and uniform backlighting.<\/p>

The 13W<\/strong> version is better suited for surfaces that require greater light output, especially stretch ceilings or backlighting applications where light plays a more prominent role in the environment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Dynamic White and CCT Ranges<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The Frontline S-TW18 operates with a standard dynamic white range:<\/p>

2,700K \u2013 6,500K<\/strong><\/p>

This makes it possible to combine warm and cool light within a single installation.<\/p>

There are also custom options available upon request:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Variant<\/th>\nColor temperature (CCT)<\/th>\n<\/tr>\n<\/thead>\n
Standard<\/td>\n2,700K \u2013 6,500K<\/td>\n<\/tr>\n
Available upon request<\/td>\n2,700K \u2013 5,000K<\/td>\n<\/tr>\n
Available upon request<\/td>\n4,000K \u2013 6,500K<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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In Lightbox, this variation in color temperature can be useful in special campaigns, storefront displays, or retail spaces where you want to alter visual perception.<\/p>

In stretch ceilings, dynamic white has a more direct application: it allows you to adjust the atmosphere of the space with warm, neutral, or cool lighting scenes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Luxes in a diffuser<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Under reference conditions:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Version<\/th>\n Luxes in diffuser<\/th>\n <\/tr>\n <\/thead>\n
S-TW18 8 W<\/td>\n 4,000\u20136,000 lux<\/td>\n <\/tr>\n
S-TW18 13 W<\/td>\n 6,000\u20138,000 lux<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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These values are calculated based on a lightbox with a white RAL 9010<\/strong> lacquered interior and a white Samba\u00ae-type backlight fabric from Berger Textiles.<\/p>

In Lightbox, this data helps estimate the visual presence of the graph.<\/p>

In the case of stretched ceilings, they serve as an initial reference, but they should be interpreted with greater caution because the goal may be to illuminate a space, not just to backlight a surface.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Light Quality: CRI and TM-30<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The general specifications for the Frontline S-TW18 are: CRI >80<\/strong><\/p>

Values by color temperature:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Temperature<\/th>\n CRI<\/th>\n TM-30-18 RF<\/th>\n <\/tr>\n <\/thead>\n
2,700K<\/td>\n 85<\/td>\n RF 87<\/td>\n <\/tr>\n
4,400K Mix<\/td>\n 88<\/td>\n RF 86<\/td>\n <\/tr>\n
6,500K<\/td>\n 85<\/td>\n RF 84<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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The 4,400K<\/strong> intermediate mix has the highest value in the set, with a CRI of 88<\/strong>.<\/p>

For advertising lightboxes, these values are usually sufficient, since extreme color reproduction is not typically a priority.<\/p>

For tensioned ceilings, however, the CRI should be evaluated based on the project\u2019s requirements. If the space requires high-quality light, advanced color rendering, or lighting conditions similar to natural light, it may be necessary to opt for solutions with a higher CRI. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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175\u00b0 beam angle<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The 175\u00b0<\/strong> beam angle is one of the most notable features of the Frontline S-TW18.<\/p>

Its wide aperture helps distribute light across the diffuser and improve uniformity.<\/p>

In Lightbox, this results in a more uniform graph.<\/p>

In stretch ceilings, it helps create a more uniform illuminated surface, reducing areas of concentrated light and harsh shadows.<\/p>

The wide beam allows for work on thin structures, provided that the recommended distances and layout are followed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Format and Adaptation<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The Frontline S-TW18 has the following dimensions:<\/p>

600 \u00d7 20 \u00d7 6.7 mm<\/strong><\/p>

The module features a slim, linear design, making it suitable for integration into light boxes, stretch ceilings, and backlit chambers.<\/p>

Reference sections for format adaptation:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Settings<\/th>\n Length<\/th>\n <\/tr>\n <\/thead>\n
Complete module<\/td>\n 600 mm<\/td>\n <\/tr>\n
Intermediate section<\/td>\n 400 mm<\/td>\n <\/tr>\n
Short section<\/td>\n 200 mm<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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This modular design allows the installation to be adapted to different formats, whether in light boxes or on larger-scale backlit surfaces.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Layout Recommendations<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The optical performance depends on the available depth, the spacing between modules, the diffuser, and the interior color of the system.<\/p>

The datasheet recommends:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Lightbox Thickness<\/th>\n Recommended spacing<\/th>\n <\/tr>\n <\/thead>\n
70 mm<\/td>\n 180 mm<\/td>\n <\/tr>\n
100 mm<\/td>\n 200 mm<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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These recommendations are based on a white interior (RAL 9010) and a white fabric panel for backlighting.<\/p>

In Lightbox, these distances help maintain a consistent layout.<\/p>

For tensioned ceilings, these can serve as a starting point, but the validation process must take into account the expected lighting level, ceiling height, use of the space, and visual comfort requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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White interior and color control<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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The interior of the system must be white to prevent color distortion.<\/p>

A colored interior trim piece can tint the light and alter the appearance of the diffuser.<\/p>

In the lightbox, this may affect how the graph is interpreted.<\/p>

In stretch ceilings, it can affect the overall color scheme of the space.<\/p>

For consistent results, it is best to work with:<\/p>