Soffito SLP

The specifiers choice

Soffito SLP is the specifiers choice for recessed applications in clean room manufacturing, food processing, hospitals, laboratories, pharmaceuticals and virology. 

The perfect luminaire for low to mid-power clean room applications. It delivers outstanding optical performance in a hygienic, easy-clean, hermetically sealed, chemically resistant enclosure. From 40~100W and with multiple control options.

Soffito SLP has the power and flexibility, to deliver highly uniform, glare free lighting at heights between 2.4~6.0m.

Soft box lighting at its best.

Soffito SLP delivers outstanding glare free visual acuity for task critical applications with class leading uniformity. Reducing environmental stress for those working long hours around fast moving precision machinery, undertaking detailed quality control inspections or providing essential services such as post operative patient care.

The high density LED arrays deliver a clean and uniform aesthetic which is guaranteed to maintain both optical performance and physical appearance for the life of the fixture. . 

Hygienic, germ-free and easy to clean

Creates a hermetic seal to virtual any flat surface

Soffito SLP creates an hermetic seal to virtually any smooth, flat surface; including PIR insulated panels, plaster or fibre-board ceilings and is suitable for both wet and dry applications. 

The one-piece seamless design of the main seal provides IP66 protection for suitable substrates; and is proven to maintain atmospheric integrity to both positive and negative pressure environments in large single room applications with 700+ individual fixtures.

It introduces two new additional seals, to the PCB and frame, providing an additional layer of protection between sterile and non sterile environments.

The leading edge of the main Soffito seal has been updated to increase protection and prevent accumulation of contaminants, dust and microbes. Whilst the valley, between ridges, facilitates hidden-application of wet-cure sealants, where it is necessary to bridge gaps or joints in the substrate.

Photo Sensitive Applications

Isollux Ambrite™ LED offers two distinct environmental colour tones for photo-sensitive applications such as high performance 3D printing, photo-lithography and pharmaceuticals. Both options eliminate wavelengths below 500nm with only moderate differences in spectral performance. 

Customers can choose the most appropriate colour for staff by specifying either Ambrite™ AMX (Pictured above) or the warmer Ambrite™ AMH (below). 

Soffito SLP is easily customised to provide dual chip options to a single luminaire, making total control of the lighting environment available at the flick of a switch, ideal for dark rooms or small laboratories.

Multiple installation options

Soffito SLP mounts flush from above or below, even passing through its own footprint, where access beneath the fitting is restricted. Where access allows, once installed Soffito can be maintained from above without breaking the seal on the room below.

Our range of kits simplify installation and include options to fire-flash openings, with ‘walk on’ options and  surface-mount kits where substrates or applications are unsuited to penetration.

Specialist applications and customisation

Whilst meeting the stringent performance requirements of multiple industries, the Soffito product suite is easily adapted for custom applications. 

Custom lens material and colour filters can be added to control specific wavelengths. Isollux Ambrite™ chipsets support photo sensitive applications such as brewing or photo-lithography. With further custom* options that include the addition of specialist LEDs such as UVC, for sterilisation or dual circuits for additional functionality. Including custom UPS, emergency support or switched spectral environments in a single convenient luminaire. 

Only the Soffito range provides a platform flexible enough to deliver such a broad range of standard and custom functions in a single luminaire across a range of power options from 40W~185W† from 5,000~25,500lm†.

How and why we de-stress key components to achieve maximum service life and optimum value

Isollux HE Chipsets are backed by independent photometry reports including, LM79 for colour rendering and IES files; and LM80 (10,000Hrs) predictive endurance tests. The LM80 reports allow engineers to accurately predict the expected performance of individual LEDs across a given range of thermal and electrical conditions. Typically manufacturers use this data to run the LEDs in circuit at or near peak loads to minimise cost to market by reducing component count.

Our engineers use the test data, as a bench mark from which to de-rate components, increasing the number of LED in circuit to optimise performance. Increasing LED count allows us to reducing drive current lowering the thermal load on all critical components, including the LED die, driver, PCB and electrical connections. This approach delivers significant gains in, efficiency, performance and reliability, in particular maximising the service life of each of the key components. 

SLP-HE Drive Current | ƒ

The illustration below scales the maximum allowable forward current for the Isollux HE chipset and the drive current used in the independent LM80 reports compared to the actual drive current used to power Soffito SLP (1,440 LED HE High Density Array).

SLP-HE Case temperature TC

The illustration below scales the case temperatures used in the LM80 reports tested at 150mA, compared to the actual case temperature of production models driven at 25mA. The combination of reduced If and Tc significantly increases performance and reliability.

Customer benefits of de-rating components

De-rating components reduces the Total Cost of Ownership (TCO) ie it reduces the long term cost of both operating and maintaining a lighting solution. Rather than focusing on headline price. TCO includes the capital cost of the luminaire and the cost of installing and maintaining the fixture.

The cost related to regular replacement of LED fittings is often overlooked. In the case of clean rooms it also generally results in significant business interruption to complex and sensitive production facilities. Adding the additional risk of performance caveats such as B’ratings and the costs quickly spiral. (See illustration below)

Isollux products are designed to surpass warranty without caveats, even when installed in challenging environments at high ambient temperatures. It provides specifiers with the option to compare operational savings over extended periods. Up to 200,000 Hours L70 when using lighting controls or a lower light loss factor, with the option to increase driver output retrospectively at the mid point in the product life cycle where controls are not an option. 

Performance life cycle comparison

Ra95 for colour critical applications.

Available in four standard colour temperatures, from 2,700~6,000ºK with superb colour rendering at both Ra85 and Ra95.

Soffito SLP-HE-495-100W (IES LM79 TM30-18)
≥120lm/W @ Nominal Ra95 / 4,000k (CRI 94.2)

Ra85 boosts efficacy

Specifying Ra85 increases lumen output whilst maintaining full colour rendering, high R9 with neutral bias, perfect for general industrial commercial and retail applications.

Soffito SLP-HE-485-100W-DA (IES TM30-18)
≥140lm/W @ Nominal Ra85 / 4,000k (CRI 85.9)

Designed for the life of your building

More Details

*All sizes and weights are for shipping and delivery purposes only and can to change depending on specification. For an exact size and weight contact Isollux directly.

Soffito Brochure

ISO-SLP-Brochure-0422.pdf