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Technology / Custom light engineering

Specify the light.
Engineer the detail.

From the colour of a single diode to the control of an entire façade. We develop the light source, circuit, optics and material around your application.

Build your technical briefExplore the engineering
Flexible circuit / Engineering drawingDWG · 01
A — Amm / DC 24 V50 mm5SMD 2835120 LED/mCUTPLAN VIEW · BOARD WIDTH & CUT UNIT1 UNIT / 6 LEDs
24V DC
9.6W/m
50mm CUT
>90Ra
Reference: AS2835-24V-120-5mm · Dimensional schematic, not a fabrication drawing.

Colour engineering

The exact character of light.

Specify the white point, colour consistency and channel layout together. A Kelvin value is only the starting point.

White-light range
The reference AS2835 strip offers 2200, 2700, 3000, 3500, 4000, 4500, 5000 and 6500 K variants. For tunable white, define the warm and cool endpoints, mixing behaviour and required output across the adjustment range.
Colour matching
Define target CCT, chromaticity coordinates and permitted colour variation. Match the LED bin and approve a physical sample against the actual stone, timber, fabric or adjacent luminaire.
RGB, RGBW or RGB+CCT
Use RGB for colour effects, a dedicated white channel for white light, or two white channels for CCT adjustment. Channel count determines the circuit, cable and controller specification.
Explore tunable white
Colour study / Material & atmosphereCCT
Warm whiteNeutral whiteCool white
Screen illustration · Confirm actual colour and consistency with a physical sample.

Electrical engineering

Power the entire run.

Power per metre, copper layout and feed positions work together. Start with the required light output and the real installation length.

Voltage & loading
12 V and 24 V platforms serve common strip applications; selected long-run ranges use 36 V or 48 V. Match the supply voltage, total watts and each controller channel’s current to the selected model.
Circuit geometry
Specify board width, LED pitch, cut interval and connector clearance. The illustrated AS2835-24V-120-5mm is 5 mm wide, with 120 LEDs/m, 50 mm cuts and a 5 m maximum run.
Thermal & feed design
Review copper, cable loss, heat transfer into the mounting profile and ambient temperature. Increasing W/m or sealing the strip changes the thermal conditions; longer installations need a documented feed plan.
View the reference strip
Electrical study / Strip loadDC 24 V
9.6 W/m × 5.0 mSingle-channel white · 24 V constant voltage
24 VDC OUT+−5.0 m
5.0 m
Strip power48.0 W
Current at 24 V2.00 A

P = W/m × L · I = P ÷ V

Reference: AS2835-24V-120-5mm. Nominal strip load only; allow for losses and driver derating when sizing the supply.

Colour quality / Spectral engineering

Go beyond a CRI number.

Two sources with the same CCT can have different spectra. Evaluate how the chosen LED renders the colours that matter in your space.

CRI & consistency
The reference AS2835 strip specifies Ra >90 and SDCM <3. For a higher-CRI brief, review the exact LED, CCT and natural-spectrum options, then confirm the target against the chosen sample.
R9 & colour fidelity
Ra averages eight test colours and does not include the saturated-red R9 sample. For skin, food, textiles or artwork, include R9 and, where required, TM-30 fidelity and gamut data in the approval brief.
Sample approval
Compare spectral power distribution, CCT, chromaticity, flux and colour rendering at the agreed operating conditions. Approve the sample in its intended diffuser and profile, alongside the actual display materials.
Explore natural-spectrum LEDs
Spectral analysis / Reading the lightSPD
See what makes up the light.Wavelength vs relative spectral intensity
00.51400450500550600650700Relative intensityWavelength / nmBlue peakBroad band
RaAverage rendering
R9Saturated red
SDCMColour consistency
Illustrative spectrum · Relative intensity, normalized. Not a measured product spectrum or a basis for calculating CRI.

Optical engineering

Put the light where it belongs.

Lens selection starts with distance, setback and the surface you need to illuminate. The beam study makes the geometry visible.

Beam distribution
Compare 15°, 30° and 60° in the geometric study to understand coverage. For asymmetric optics, specify the horizontal and vertical angles separately. Confirm available lenses and photometric files for the selected model.
CAD & lighting study
Define mounting height, wall setback, aiming angle, luminaire spacing and surface reflectance. Use the selected product’s photometric file in the project model to evaluate illuminance and uniformity.
Prototype review
Check overlap, scalloping, spill light and glare on the actual finish. Beam width alone cannot predict lux or a wall-washing result; the lens, lumen output and installation all contribute.
Explore flexible wall washers
CAD light-source study / Beam geometryOPTICS
LIGHT SOURCE30°2.0 m1.07 m
2.0 m
Geometric beam width1.07 m

W = 2d × tan(θ/2)

Geometric study: perpendicular projection onto a plane, using the selected beam angle. Not IES photometry, a lux map or a project CAD result.

Materials / Special processes

Engineer every layer.

Optical, electrical and mechanical performance meet in the cross-section. Customisation extends from the flexible circuit to the finished enclosure.

Flexible circuit
Three-layer FPC processing and continuous electroplating and etching support custom circuit layouts. Review copper distribution, trace spacing, solder pads, cut units and the required bend direction together.
Extrusion & optics
PMMA and TPU flexible extrusion, silicone and PC offer different routes to an optical body. Select the material and diffuser geometry for transmission, flexibility, surface appearance and operating environment.
Assembly details
Confirm profile width and height, minimum bend radius, cable exit, lead length, connectors, end caps and mounting method. Protection, UV and chemical resistance apply to the selected material and finished assembly.
See quality validation
Assembly study / Exploded sectionSECTION · A
Optical diffuserLED sourceFlexible circuitMount & heat pathMaterial / transmissionColour / package / pitchCopper / insulation / padsProfile / fixing / conductionLIGHT OUTPUT ↑
Generic assembly schematic · Layer thicknesses, materials and construction depend on the selected product.

System integration

Choose the behaviour. Match the protocol.

Whole-run dimming, adjustable white and individual pixels need different electronics. Specify the complete signal path alongside the power path.

Architectural control
DALI, 0/1–10 V and phase-cut control require a compatible driver or interface. For tunable white over DALI, specify suitable DT8(Tc) gear. The strip itself does not make a system DALI certified.
DMX512 & SPI
For DMX, define addressing and channels per pixel. For SPI, confirm the exact IC, data/clock configuration, channel order and controller compatibility. Pixel length is model-specific, not necessarily one LED.
Commissioning brief
Record zones, pixel count, dimming range, scene behaviour, power-feed locations and signal runs. Confirm refresh behaviour, fault response and replacement addressing with the actual controller and LED model.
Explore controllers & decoders
System diagram / Select an architectureSIGNAL
CONTROL INPUTDALI control
INTERFACECompatible CV driver
Matched power supply → driver / load
Tunable-white strip
DT8(Tc) for adjustable white

Match the driver’s voltage and colour-control type to the strip. Confirm the selected gear’s certification and dimming behaviour.

Functional diagram, not a wiring diagram. Match the driver, interface and load to the actual equipment.

Optical engineering

Better light, by design.

See how structure, optics and materials change the light you get.

Silicone neon · structural design

Let more light through.

Refining the structure raises the silicone neon’s transmittance from 50% to 80%: more of the light passes through the body.

80%

transmittance

+30 percentage points

Where it matters

Continuous lines of light in coves, joinery and signage.
Explore silicone neon
Before & after

More light passes through

Transmittance (%)
Before50%
After design optimisation80%

From requirement to reference sample

Start with a precise brief.

Send the details below so the optical, electrical and mechanical requirements can be reviewed together.

  1. Application

    Drawing or CAD file, dimensions, installation photos, viewing distance and environment.

  2. Light

    CCT or colour target, CRI/R9, desired lm/m or lux, beam angle and dimming behaviour.

  3. Integration

    Voltage, run lengths, available profile, feed positions, protocol and controller model.

  4. Approval

    Agree the drawing, electrical specification, sample criteria and reference sample before production.

Configurations and final ratings are confirmed for the selected model and approved sample.