Every fiber optic installation starts with one decision: which engine feeds the fiber. Get that right and a star ceiling, a pool wall, or a museum case runs off a single serviceable box instead of a hundred individual fittings.
The Engine Does the Work — the Fiber Just Carries It
A fiber optic illuminator is not a lamp. It is a light source with a job: generate high-intensity light, focus it into the polished end of a fiber bundle, and let the fiber carry that light — not electricity — to wherever it needs to appear. The engine sits somewhere convenient and serviceable: a ceiling void, an equipment cupboard, a pool plant room. The fiber tips are the only part that ever reaches the visible surface.
That separation is the entire value proposition. No current reaches the point of emission. One engine can terminate anywhere from a few dozen to well over a thousand individual fiber ends, which means a single serviceable unit replaces what would otherwise be an array of separate fixtures, each with its own wiring and driver.
Why does this matter for wet or sensitive spaces?
Swimming pools, spas, artwork, textiles and children's rooms all share one constraint: electrical current near the surface is a liability. Fiber optic sidesteps the constraint entirely rather than managing it with IP ratings — because there simply isn't a live component at the point where light appears.
Five Engines, Each Built for a Different Job
Nucleo's range isn't one illuminator in different colours — it's five distinct engines, each engineered around a specific port configuration, output capacity, or built-in behaviour. All five are available across every control variant below.
NLE-18
Single 20mm port. Feeds up to 600 points of 0.75mm fiber. The default choice for residential star ceilings and mid-scale features.
600 pts · 20mm portNLE-36 Dual Port
Two independent 20mm ports (18W × 2) in one enclosure — run two separate fiber zones from a single unit.
Dual port · Two zonesNLE-45
30mm port, up to 1200 points of 0.75mm fiber. Built for large commercial ceilings and high-density installs.
1200 pts · 30mm portNLE-5S Shooting Star
Internal motorised mechanism generates twinkling and shooting-star motion automatically — no controller needed.
Built-in star effectNLE-90 Pool
30mm port, up to 1200 points. Engineered to sit dry in a plant room while fiber alone crosses into the water.
1200 pts · Pool specFour Control Variants — Available on Every Model
Colour behaviour is specified independently of the model. Whichever engine fits your point count, it ships in the variant your project needs.
Choosing between Single Colour and RGBW
If the brief is a fixed warm-white star effect or a consistent architectural wash, Single Colour gives the highest output per watt with nothing to configure. If the brief calls for scene changes, seasonal colour, or show programming, RGBW or the DMX variant is the right starting point — the engine and fiber count stay the same either way.
What's Inside the Engine
PMMA Fiber Compatible
Accepts end-emitting PMMA fiber in 0.75mm, 1mm, 1.5mm, 2mm and 3mm diameters, plus side-emitting PMMA for linear glow effects.
Active Thermal Management
A temperature-controlled fan with auto-speed adjustment keeps LED junction temperature stable, protecting the 50,000-hour rated life.
DMX512 Pro Control
The DMX variant carries a 3-pin XLR input and pass-through for daisy-chaining into any standard lighting desk or BMS.
Self-Contained Star Effect
The NLE-5S produces its shooting-star motion from an internal mechanism — nothing external to programme or maintain.
Dry-Side Pool Engineering
The NLE-90 is built to live in a dry plant room. The pool structure only ever sees inert fiber, never a live component.
Independent Dual Zones
The NLE-36's two 20mm ports run different colours, brightness levels, or even different control modes simultaneously.
50,000-Hour LED Life
Rated to L70 at 50,000 hours — the engine, not the fiber, is the only wear component in the whole installation.
Single Service Point
Every fiber tip in the installation traces back to one accessible engine — maintenance means opening one box, not hundreds.
From Power Socket to Fiber Tip
- Light generation: the LED module inside the engine produces high-intensity light at the specified colour or CCT.
- Fiber coupling: a collimating lens at the 20mm or 30mm output port focuses that light onto the polished input face of the fiber bundle.
- Transmission: PMMA fiber carries the light by total internal reflection, with minimal loss over runs up to 15 metres.
- Emission: at each fiber termination, light appears with no heat and no electrical component present.
- Control: for CCT, RGBW and DMX variants, colour and intensity are changed at the engine — via RF remote, app, or DMX desk — without ever touching the fiber runs.
Model Comparison
| Spec | NLE-18 | NLE-36 Dual | NLE-45 | NLE-5S | NLE-90 Pool |
|---|---|---|---|---|---|
| Port Size | 20mm × 1 | 20mm × 2 | 30mm × 1 | — | 30mm × 1 |
| Max Points (0.75mm) | ~600 | ~600 per port | ~1200 | — | ~1200 |
| Distinct Feature | — | Independent dual zone | High capacity | Built-in shooting star | Dry-side pool engineering |
| Colour Variants | Single Colour · CCT · RGBW · DMX — all available on every model | ||||
| Control (Single CCT) | Manual / 0–10V dimming | ||||
| Control (CCT / RGBW / DMX) | DMX512 (XLR) · RF Remote · Wi-Fi / Bluetooth App | ||||
| Fiber Compatibility | PMMA end-emitting 0.75/1/1.5/2/3mm · PMMA side-emitting | ||||
| Max Fiber Run | Up to 15m (PMMA) | ||||
| Input Voltage | AC 100–240V, 50/60Hz | ||||
| Cooling | Active fan, temperature-controlled auto-speed | ||||
| LED Lifespan | 50,000 hours at L70 | ||||
| Warranty | 2 Year (Nucleo Standard) | ||||
Where These Engines Get Specified
Star Ceilings
Bedrooms, cinema rooms, hotel suites. NLE-5S for natural twinkling, NLE-18 or NLE-45 RGBW for colour-controlled scenes.
Swimming Pools & Spas
NLE-90 engine sits dry in the plant room; only inert fiber crosses into the water. No electrical hazard at the light point.
Hotels & Hospitality
Lobby constellations, feature ceilings, spa vaults. NLE-45 or NLE-36 dual-port for large-area or zoned installs.
Museums & Galleries
No UV or measurable heat at the emission point — the standard choice for lighting sensitive artwork and textiles up close.
Children's Spaces & Nurseries
Sensory rooms, paediatric wards, nursery ceilings. Safe embedded light points with no heat and no live current.
Themed & Entertainment Venues
DMX variant integrates into full show control. Multi-engine setups with NLE-36 handle complex zone programming.
Retail & Display Lighting
Fine jewellery cases, product plinths and feature walls — fiber points deliver sparkle without heat near the merchandise.
Wellness & Spa Interiors
Steam rooms, relaxation ceilings and treatment rooms — CCT or RGBW variants set mood without any wiring near moisture.
Frequently Asked Questions
It depends on the port size. The 20mm-port NLE-18 comfortably drives up to 600 points of 0.75mm PMMA fiber. The 30mm-port NLE-45 and NLE-90 push that to roughly 1200 points. The NLE-36 has two independent 20mm ports, so it behaves like two NLE-18 engines running from one enclosure — around 600 points per port.
Yes, and not because of an IP rating. The NLE-90 engine stays dry, mounted in a plant room outside the pool structure. Only the fiber strands — inert PMMA or glass, carrying light rather than current — cross into the water. There is no electrical component anywhere near the underwater emission point.
It gives you two independently addressable 20mm outputs from one enclosure. You could run a warm 3000K bundle into one zone and an RGBW bundle into another, both from the same box, without needing two separate engines, two power runs, or two service points.
No. The twinkling and shooting-star motion is generated internally by a motorised mechanism inside the NLE-5S itself. Power it on and the effect runs continuously — there is no DMX programming, app pairing, or external controller required for the base effect.
Yes, every model in the range — NLE-18, NLE-36, NLE-45, NLE-5S and NLE-90 — is available as a DMX variant with a 3-pin XLR input and pass-through for daisy-chaining. They accept control from GrandMA, ETC, Chamsys, or any DMX512-compliant desk or building management system.
The infrared component is filtered out at the illuminator before the light ever enters the fiber, and no UV is transmitted along the strand. What reaches the fiber tip is visible light with no measurable heat — which is why fiber optic is the standard choice for lighting artwork, textiles, and other heat- or UV-sensitive material at close range.
PMMA fiber runs from a Nucleo engine hold usable brightness for up to 15 metres. Beyond that, additional illuminator engines or a switch to glass fiber (for longer, higher-loss-tolerant runs) is the usual approach — this is factored into project design before installation.
Spec the Right Engine for Your Fiber Count
Tell us the point count, the zone split, and the control variant your project needs — Nucleo will confirm the right engine, fiber diameter and run length before you order.
