What Is the Nucleo 22mm Tunable White Magnetic Track Series?
This is Nucleo's complete 22mm magnetic track lighting system — a coordinated family of fixtures sharing the same 22mm slim profile, the same 48V low-voltage magnetic rail interface, and the same field-selectable CCT control. The series covers every architectural lighting role you need on a track run: ambient illumination, precision task lighting, accent spotlighting, and architectural wall illumination.
The unifying feature across the entire series: every fixture carries an on-board 3-position DIP switch that lets the installer select 3000K, 4000K, or 6000K directly on the luminaire. No driver swap, no rewiring, no commissioning app. Mix fixture types freely on the same track, set each one's CCT independently, change anything at any time. This is what specifiers mean when they say "a real track system, not a catalogue of lookalikes."
The Four Fixture Types in the Series
Four fixture archetypes, one product family. All share the 22mm body width, 48V magnetic mounting, and 3-position DIP switch tunable white.
Linear
Continuous diffused light line. Soft, even ambient illumination across the track run — the workhorse fixture for general lighting.
110° diffused beamGrille
Multi-cell anti-glare downlight. Deep-set LED cells with low UGR — for offices, meeting rooms, and sightline-critical spaces.
UGR <19 anti-glareSpot
Tiltable, rotatable precision spotlight. Aim-anywhere accent lighting for retail merchandising, gallery walls, and feature surfaces.
355° rotation · 90° tiltWallwasher
Asymmetric optic for even vertical surface illumination. Washes walls floor-to-ceiling without hotspots — for feature walls and architectural surfaces.
Asymmetric wall-wash opticThe Universal Feature — DIP Switch Tunable White
Every fixture in the series carries the same 3-position slide DIP switch. Three discrete, factory-calibrated LED channels inside each fixture — physically selected by switch position. Try the live demo below using the Linear fixture as the reference — the behaviour is identical across Grille, Spot, and Wallwasher.
Try the live demo. Click the slider labels — 6000K, 4000K, 3000K — or hit "Auto-Cycle" to watch the fixture transition through all three colour temperatures the way it would on site.
Three CCT Settings · Standard Across the Series
Every fixture — Linear, Grille, Spot, Wallwasher — uses the same three CCT settings. This means you can swap a Spot for a Wallwasher mid-project without re-specifying colour temperature, and homeowners or facility managers can rebalance the lighting scheme without ordering new fixtures.
Nucleo Tunable White Series vs. Multi-SKU Magnetic Track
Why specifying a unified tunable white series outperforms ordering separate fixed-CCT fixtures across a project.
✅ Nucleo 22mm Tunable White Series
- One series covers Linear, Grille, Spot, Wallwasher
- Every fixture has 3000K / 4000K / 6000K on-board
- Mix fixture types freely on the same track
- CCT decided per-fixture during commissioning
- Mockup feedback never triggers new fixture orders
- Distributor stocks one CCT variant per fixture type
- Common 22mm body width — visual consistency across the run
- Same 48V magnetic interface — interchangeable any time
❌ Conventional Fixed-CCT Track Systems
- Separate SKU for each fixture-type / CCT combination
- 12+ product codes to cover the same range
- CCT must be locked at specification stage
- Mockup changes mean re-ordering and lead-time delays
- Distributor stocks 3× the inventory
- Mixing fixture types often means visual inconsistency
- Retrofitting CCT changes requires full fixture replacement
- Higher total project cost across lifecycle
Why Specify This Series?
Engineered for projects where lighting flexibility, design accuracy, and on-site control all matter.
Universal DIP Switch
Identical 3-position slide switch on every fixture in the series. Train the installer once — the procedure is the same for Linear, Grille, Spot, and Wallwasher.
CRI >90 Ra Standard
High colour rendering across all three CCT settings, on every fixture type. Suitable for retail, hospitality, gallery, and clinical applications.
Unified 22mm Profile
Common body width across the series. Linear, Grille, Spot and Wallwasher present the same visual line on the ceiling — no profile mismatch on mixed runs.
48V Magnetic Mount
Tool-free magnetic clip-on onto the 48V rail. Any fixture can be repositioned, swapped, or removed at any time — including mid-occupancy.
Glare-Controlled Optics
Every fixture optimised for its application — diffused for Linear, deep-set cells for Grille, faceted reflector for Spot, asymmetric for Wallwasher.
Black & White Bodies
Matte black and matte white finishes available across all four fixture types. Custom RAL powder coat available on project quantities.
How the DIP Switch Works
Every fixture carries a small 3-position slide switch on its body, accessible without removing the unit from the track. The procedure is the same regardless of fixture type:
- Power down the magnetic track at the driver or wall switch.
- Locate the DIP switch on the fixture body (typically near the magnetic contact bracket).
- Slide to the desired position: Left = 6000K, Middle = 4000K, Right = 3000K.
- Power up. The new CCT is active immediately — no commissioning, no app, no controller.
Because the switch physically routes power between three separate factory-calibrated LED channels inside each fixture, every CCT setting delivers full luminous output with the same CRI >90 performance — no dimming penalty, no efficacy compromise, no phosphor blending guesswork.
Common Specifications
Shared specifications across all four fixture types in the series.
| Specification | Value |
|---|---|
| Series | 22mm Magnetic Track Tunable White |
| Fixture Types | Linear · Grille · Spot · Wallwasher |
| Track System | 22mm Magnetic Track, 48V DC |
| CCT Selection | On-board 3-Position DIP Switch (every fixture) |
| CCT Options | 3000K / 4000K / 6000K (±200K) |
| CRI | >90 Ra (R9 >50) |
| Input Voltage | 48V DC (via 48V magnetic track driver) |
| Body Material | Extruded aluminium with PMMA optics |
| Body Width | 22mm (common across the series) |
| Body Colour | Matte Black / Matte White / Custom RAL |
| Connection | Magnetic clip-on, tool-free, repositionable |
| Dimming | Track-level via 48V DALI / 0-10V driver (optional) |
| IP Rating | IP20 (indoor) |
| Operating Temperature | -10°C to +45°C |
| Lifespan | 50,000 hours at L70 |
| Warranty | 2 Year (Nucleo Standard) |
Where the Series Performs
Mix fixture types and CCT settings to match the precise demands of each space — all from a single track run.
Flagship Retail
Linear for ambient, Spot for product highlights, Wallwasher for brand walls — all on one rail.
Hotel Lobbies & Suites
Linear ambient at 3000K, Spot accents on art at 4000K, Wallwasher on feature stone surfaces.
Galleries & Showrooms
Spot for art at 4000K daylight-balanced, Linear corridor light at 3000K for transition spaces.
Corporate Offices
Grille for low-glare desk-zone task lighting, Linear for circulation, all at 4000K neutral.
Luxury Residences
Linear in passages, Spot for artwork, Wallwasher for texture walls — homeowner-tunable per room.
Restaurants & Cafés
Spot accents on dining tables at 3000K, Linear ambient warm wash, switch all to 4000K during prep.
Frequently Asked Questions
What fixtures are available in the 22mm magnetic track tunable white series?
The series includes four fixture types — Linear, Grille, Spot, and Wallwasher — all engineered for the 22mm 48V magnetic track rail. Every fixture features the same DIP switch tunable white system with 3000K, 4000K, and 6000K field-selectable settings.
How does the DIP switch tunable white work?
Each fixture carries a 3-position slide DIP switch on its body. The installer slides the switch to choose 3000K, 4000K, or 6000K. The fixture switches between three calibrated LED channels internally — no driver replacement, no rewiring, no app required.
Can different fixture types be mixed on the same track?
Yes. Linear, Grille, Spot and Wallwasher fixtures share the same 22mm 48V magnetic mounting interface. They can be combined freely on any single track run — and each fixture's CCT can be set independently via its own DIP switch.
Is this true tunable white or step-tunable?
The series is step-tunable (3-step) — three discrete calibrated CCT settings per fixture. It is not continuously variable like a 2700K–6500K dynamic tunable white system. Step-tuning is preferred where specifiers want predictable, repeatable CCT values without a control system. For continuously variable tunable white on magnetic track, ask Nucleo about the DALI-controlled tunable white range.
Can the CCT be changed after installation?
Yes. Power down the track, slide the DIP switch on any fixture to the desired position, and re-energise. The new colour temperature is active immediately. Works on Linear, Grille, Spot, and Wallwasher identically.
Is this series compatible with all 22mm magnetic track systems?
The series is engineered for the standard 48V 22mm magnetic track profile used across the Nucleo magnetic track ecosystem. Always verify track polarity, voltage, and rail width before installation. Cross-brand compatibility varies — contact the Nucleo project team for confirmation on existing site infrastructure.
Are the fixtures dimmable?
Each fixture is non-dimming at the unit level (the DIP switch only sets CCT). However, the entire 48V magnetic track run can be dimmed via a compatible 48V DALI or 0-10V driver upstream — controlling all fixtures on that track simultaneously.
Where can I buy this magnetic track series in India?
Direct from Nucleo Pan India. Call 08042783408 or WhatsApp +91 8591141102. Project pricing, IES photometric data, and on-site mockup units available for specifier projects.
🇮🇳 Delivering Pan India — Including
Mumbai · Delhi · Bangalore · Hyderabad · Chennai · Pune · Ahmedabad · Kolkata · Surat · Jaipur · Lucknow · Nagpur · Indore · Chandigarh · Bhopal · Kochi · Coimbatore · Visakhapatnam · Gurgaon · Noida
Specify the Nucleo Tunable White Magnetic Track for Your Next Project
IES photometric files, sample units across all four fixture types, project pricing, and on-site mockup support — all available Pan India from the Nucleo lighting design team.
