50ft UL-Certified 18AWG DC Extension Cable (2.1mm x 5.5mm) - Heavy Duty, White | HDCX50W
Heavy-Duty 50ft DC Power Extension Cable — 18 AWG UL2464 | 2.1mm x 5.5mm | White
Part: HDCX50W
The white-jacket version of our heavy-duty 50ft DC extension cable, built for long-run installations where a clean, discreet appearance matters. Featuring an 18 AWG pure copper core and UL 2464-certified flame-retardant jacketing, this cable maintains stable voltage delivery across the full 50-foot run — making it the right choice for large LED lighting installations, retail environments, and commercial AV setups where black cable would stand out.
Technical Specifications
- Connector Type: 2.1mm (ID) x 5.5mm (OD) — center positive compatible
- Wire Gauge: 18 AWG — essential for maintaining voltage stability over 50 feet
- Cable Length: 50 feet (15.24 meters)
- Connectors: 1x Female Jack (input) + 1x Male Plug (output), molded strain relief
- Jacket: UL 2464 component rated — flame retardant, industrial grade
- Color: White
- Conductor: Pure copper (not CCA)
Common Use Cases & Compatible Devices
- Large LED lighting installations in retail, hospitality, and commercial spaces
- Under-cabinet and over-cabinet LED strips requiring long runs (12V, 24V)
- CCTV and IP security cameras in light-colored environments
- Home automation and smart home device power extensions across rooms
- Long-run networking equipment power extensions
- Any 2.1mm x 5.5mm DC device requiring a discreet 50-foot white cable run
Why 18 AWG Is Critical at 50 Feet
Voltage drop is proportional to cable length. At 50 feet, a 22AWG or 24AWG cable can cause significant voltage drop — enough to cause LED strips to dim unevenly or sensitive electronics to malfunction. The 18 AWG construction minimizes resistance over the full 50-foot run, maintaining stable voltage delivery to your device.
Frequently Asked Questions
Q: What is the maximum current this cable supports at 50 feet?
A: At 50 feet, 18 AWG copper supports approximately 2–3A with acceptable voltage drop for most 12V applications. For higher-current loads, consider running a higher-voltage supply or using multiple shorter runs.
Q: Will this work with my 12V or 24V LED strip?
A: Yes. Compatible with any DC power supply using a 2.1mm x 5.5mm barrel connector, regardless of voltage (within the cable's rated current limits).
Q: Is a black version available?
A: Yes — see our 50ft 18AWG Black DC Extension Cable for installations where a black cable is preferred.
Q: Is this available for bulk or OEM orders?
A: Yes — we maintain high inventory for OEM and commercial projects. Contact us for volume pricing.
