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4mm Ultra-Bright Side-Glow PMMA Fiber for Swimming Pool Lighting
The 4 mm ultra-bright side-glow PMMA fiber is a robust decorative light guide built for swimming pools, water features and wet-side installations, glowing evenly along its length with a UV- and algae-resistant jacket.
Product Overview
Side-glow fiber is a safe alternative to neon: it changes color, is virtually unbreakable and energy efficient. This 4 mm PMMA version carries an algaecide- and fungicide-treated, UV-protected outer jacket, so it can live beside pool water, on amusement rides, in extreme cold or fully underwater — because there is no heat or electricity in the cable itself. With an 80 W LED engine, a run of this ultra-bright side-glow fiber can reach around 60 m, roughly double a standard polymer side-glow cable.
Key Features
- 4.0 mm ultra-bright side-glow PMMA, diameter tolerance ±0.2 mm.
- UV-protected, algae/fungicide-treated jacket for pool and outdoor use.
- No heat, no electricity in the cable — safe underwater and around water.
- Soft, flexible, 18 mm minimum bend radius; easy to shape to pool edges.
- Supplied on 100 m rolls; wider 1.5–10 mm range available.
Specifications
| Parameter | Value | Unit | Notes / Conditions |
|---|---|---|---|
| Fiber Type | Side-glow (side-emitting) PMMA fiber | – | Ultra-bright side glow for pools and water features. |
| Fiber Diameter | 4.0 | mm | Per supplier family table (sof-4.0 / ssof-4.0). |
| Diameter Tolerance | ±0.2 | mm | Family table for 1.5-6.0mm range. |
| Core Material | PMMA (MMA) | – | Per supplier listing. |
| Minimum Bending Radius | 18 | mm | Per supplier listing. |
| Length | 100 | m/roll | Supplied by the roll. |
| Jacket Treatment | UV-protected, algaecide/fungicide treated | – | For outdoor and pool/wet use. |
Applications
- Swimming pool edge, coping and underwater accent lighting.
- Water features, fountains and wet leisure areas.
- Amusement park rides, extreme-cold outdoor and neon-replacement decor.
See our full fiber optic lighting range for matching high-power LED engines and other side-glow diameters.
Ordering & Customization
We supply this side-glow fiber by the 100 m roll, in diameters from 1.5 mm to 10 mm (see the family table), cut to length with a matching LED engine on request. To quote, confirm the run length, diameter, engine watt/color and IP rating for the location. Contact our sales team with your pool layout.
FAQ
Can it be fully underwater? The fiber jacket is treated for wet use and carries no voltage; the LED engine must be installed dry and rated for the location — never submerge the engine.
How long a run can one engine drive? Supplier data says an 80 W engine can drive about 60 m of this ultra-bright 4 mm side-glow fiber; longer runs are split between engines.
What diameters are available? The family lists 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0 and 10 mm (standard sof and super-bright ssof variants).
Why Choose Us
TOCP Fibercable supplies side-glow and end-glow PMMA fiber plus LED engines for pools, hospitality and commercial decor, with supplier parameters checked before quoting. Read our FAQ page or visit the home page.
Related products: You may also need RGB Color-Changeable PMMA Fiber Optic Glow Tree for Christmas Decor, 5mm PMMA Side-Emitting Plastic Optical Fiber for Toys and Decor and Asahi Kasei DB-400 0.4 mm PMMA Bare POF, 10000 m Roll.




