Custom Underwater Lighting Cable Manufacturer | IP68 Waterproof Marine Lighting Wiring
Our custom underwater lighting cable is engineered for one purpose: delivering safe, reliable power in permanent aquatic environments where standard wiring simply cannot perform. Manufactured to IP68 and IP69K standards, each cable features Class 5 fine-stranded tinned copper conductors — chosen specifically to resist the galvanic corrosion that chlorinated pool water and saltwater inflict on bare copper over time. The multi-layer construction pairs XLPE or silicone core insulation with a UV-stabilised CPE or LSZH outer sheath, providing a service life in excess of 25 years across temperature ranges from −40 °C to +105 °C.
Custom Underwater Lighting Cable Built for Extreme Aquatic Environments | IP68 Waterproof Marine Lighting Wiring
Engineered for permanent submersion in saltwater, freshwater pools, and marine structures — our IP68-rated underwater lighting cable delivers fault-free conductivity where standard wiring fails. Available in custom lengths, connector types, and conductor configurations for OEM and project-specific requirements.
|
IP68 / IP69K Waterproof Rating |
Tinned Copper Conductor |
0.5 – 6.0 mm² Cross Section |
300 / 500 V Voltage |
−40 °C to +105 °C Temperature |
UL / CE / RoHS Certifications |
Company at a Glance
|
18+ Years in Marine Cable Manufacturing |
60+ Countries Served Globally |
200+ Custom Cable Configurations |
30 m Maximum Rated Submersion Depth |
Product Lineup — Model Overview
Every model below is manufactured to withstand continuous immersion. All variants are available in custom lengths, connector types, and colour codes to match project requirements.
|
Model / Part No. |
Cores |
Section (mm²) |
Voltage |
IP Rating |
Jacket |
Application |
|
ULC-2C-05 (2-Core Standard) |
2 |
0.5 / 0.75 / 1.0 |
300 V |
IP68 |
UV PVC |
LED pool lighting strips, decorative ponds |
|
ULC-3C-15 (3-Core Marine) |
3 |
1.0 / 1.5 / 2.5 |
300/500 V |
IP68 |
CPE |
Marine dock lighting, floating pontoons |
|
ULC-4C-25S (4-Core Armoured) |
4 |
2.5 / 4.0 |
300/500 V |
IP68/IP69K |
LSZH + SS braid |
Offshore structures, ship hull illumination |
|
ULC-SJ-DC12 (Low-Voltage DC) |
2 |
0.5 / 0.75 |
12/24 V DC |
IP68 |
Silicone + PVC |
Solar fountain systems, aquarium lighting |
|
ULC-RGB-4C (RGB Control) |
4 |
0.5 × 4 |
24 V DC |
IP68 |
Translucent TPU |
RGB underwater LED colour-change systems |
|
ULC-HT-6C (High-Temp / Deep) |
6 |
1.5 / 2.5 / 4.0 |
500 V |
IP68 (30 m) |
PE |
Deep-water fountain lighting, dive tanks |
Engineering Specifications
All underwater lighting cable variants share a common engineering baseline — designed to exceed IEC 60227 and IEC 60245 standards for submerged electrical wiring.
|
Parameter |
Value |
Notes |
|
Waterproof Standard |
IP68 / IP69K |
IEC 60529; continuous immersion |
|
Conductor Material |
Tinned Copper |
Class 5 fine-stranded, anti-corrosion |
|
Cross-Sectional Area |
0.5 – 6.0 mm² |
Custom sizes available on request |
|
Insulation |
XLPE / Silicone / PVC |
Material selected per application |
|
Operating Temperature |
−40 °C to +105 °C |
Thermal cycling stability tested |
|
Voltage (AC) |
300 V / 500 V |
Low-voltage DC variants: 12 / 24 V |
|
Outer Sheath |
CPE / PVC / LSZH / PE |
UV-stabilised; halogen-free options |
|
Flame Resistance |
IEC 60332-1 / -3 |
LSZH variants meet BS EN 50525 |
|
Submersion Depth |
Up to 30 m |
Standard: 10 m; HT series: 30 m |
|
Bend Radius |
6× cable OD |
Static install; dynamic on request |
|
Salt Spray Resistance |
1000 h |
ASTM B117; marine-grade sheathing |
|
Certifications |
UL / CE / RoHS |
ISO 9001:2015 manufacturing facility |
Cable Construction — Layer by Layer
Five-layer construction ensures mechanical integrity, chemical resistance, and zero water ingress — even after 10,000 hours of continuous submersion testing.
|
# |
Layer Name |
Description |
|
1 |
Tinned Copper Conductor |
Class 5 fine-stranded, tin-plated to prevent oxidation in saline and chlorinated water. Available from 0.5 mm² to 6.0 mm² cross-section. |
|
2 |
XLPE / Silicone Core Insulation |
Cross-linked polyethylene or silicone insulation rated to 105 °C. Resistant to hydrolysis, chlorine, and pool treatment chemicals. |
|
3 |
Water-Blocking Filler |
Longitudinal waterproofing compound injected between cores, preventing capillary ingress even when the cable end is improperly terminated. |
|
4 |
Braided Armour (optional) |
Stainless steel or tinned copper braid on armoured models (ULC-4C-25S) for mechanical protection in marine dock environments. |
|
5 |
UV-Stabilised CPE / LSZH Outer Sheath |
Chlorinated polyethylene or low-smoke zero-halogen compound. Maintains flexibility from −40 °C; rated for 25-year service life in outdoor aquatic environments. |
Application Scenarios
Designed for any environment where electricity and water must coexist safely — from residential pools to large-scale offshore installations.
Swimming Pool & Spa Lighting
Chlorine-resistant CPE sheathing rated for permanent installation in commercial and residential pool environments. Meets EN 60598-2-18.
Marine & Yacht Hull Lighting
Saltwater-rated tinned copper conductors prevent galvanic corrosion in tidal zones, boat hull accent lighting, and below-waterline fixtures.
Decorative Fountains & Water Features
Flexible fine-stranded construction ideal for dynamic fountain heads, laminar jets, and RGB colour-change feature installations.
Offshore & Dock Infrastructure
Armoured models (ULC-4C-25S) withstand mechanical stress from wave action and boat traffic in commercial harbour lighting systems.
Aquariums & Aquaculture
Low-voltage DC silicone variants are safe for freshwater and marine tank LED lighting in public aquariums and fish farm illumination.
Garden Ponds & Landscape Water
Compact 2-core models suit garden pond uplighting, waterfall feature strips, and solar-powered submersible LED installations.
Frequently Asked Questions
Technical queries from lighting designers, electrical contractors, and marine engineers.
Q1. What does IP68 actually mean for an underwater lighting cable?
IP68 is defined by IEC 60529 and indicates the cable can withstand continuous immersion in water beyond 1 metre depth. Our standard IP68 rating is tested to 10 metres for 72 hours without water ingress. The HT series is rated to 30 metres. IP69K adds resistance to high-pressure, high-temperature water jets.
Q2. Why use tinned copper rather than bare copper in marine wiring?
Bare copper oxidises rapidly in saltwater and chlorinated pool environments, increasing resistance and creating failure points. Tin-plating each strand prevents galvanic corrosion, maintains low contact resistance over years of immersion, and ensures the conductor remains easily solderable for field terminations.
Q3. Can you manufacture custom cable lengths and connector types?
Yes — custom length spools, drum-wound reels, and pre-cut assemblies with factory-fitted connectors (M12, M16, and proprietary waterproof plugs) are available from a minimum order of 500 metres per configuration. We also offer private-label jacketing for OEM clients.
Q4. What is the difference between CPE and LSZH outer sheath materials?
CPE (chlorinated polyethylene) offers superior flexibility at low temperatures, excellent chemical resistance to pool chemicals, and outstanding UV stability — ideal for outdoor aquatic and marine use. LSZH (low-smoke zero-halogen) is preferred for enclosed spaces such as yacht interiors or aquarium buildings where fire safety regulations restrict halogen-emitting materials.
Q5. How do your cables handle saltwater versus chlorinated pool water?
Saltwater promotes galvanic corrosion and requires tinned copper conductors and marine-grade CPE sheathing. Chlorinated pool water degrades standard PVC at accelerated rates — our pool-grade variants use a specially compounded CPE formulation with antioxidant stabilisers, tested to 1000 hours of chlorine exposure at 5 ppm concentration.
Q6. What certifications do your waterproof marine cables carry?
Our facility holds ISO 9001:2015 certification. Product certifications include CE marking (LVD Directive), UL Listed (UL 62, UL 719), RoHS 3 compliance (EU 2015/863), and IEC 60227 / IEC 60245 type approval. Third-party test reports from SGS and TUV are available on request.
