100FT 18 Gauge 3 Conductor Electrical Wire - Flexible White 18/3

In this review the reviewer tested the 100ft 18 gauge 3 conductor electrical wire to judge whether it works well for low voltage lighting, automotive and marine wiring. The bottom line: this 18/3 stranded tinned copper cable is best for DIYers and installers who need a flexible, abrasion-resistant run of white jacketed wire for LED strips, speakers or DC circuits, because its multi-strand tinned copper conductors and PVC jacket make it easy to strip, solder and route while offering reliable conductivity up to the rated limits.

Key Features

• 18 AWG stranded tinned copper: Provides higher conductivity and lower resistance than common aluminum alternatives, which improves signal and power delivery for low voltage runs.
• 100 ft length: A single spool covers moderate runs for landscape lighting, LED strips or automotive projects without needing to join multiple pieces.
• 300V max and 7.5A max current: Works across common voltages from 5V, 12V and 24V up to the rated 300V, making it versatile for DC and low-voltage AC tasks.
• Flexible PVC white jacket: The jacket resists abrasion and sunlight while remaining pliable for tight routing and easy crimping or soldering.
• Three color cores: Black, red and yellow conductors simplify identification for wiring LED strips, speakers and other multi-conductor connections.

Who It's For

This cable is aimed at hobbyists, electricians and installers who run LED strip lighting, small DC circuits, automotive or marine internal wiring, and speakers where a flexible, easy-to-strip multi-conductor cable is useful. The white jacket also makes it suitable for visible runs where a light finish is desired.

Those needing heavy power delivery, high-current household branch circuits, or specialized marine cable with extra chemical or oil resistance should look elsewhere; this product is optimized for low-voltage and moderate current applications rather than high-amperage mains wiring.

Pros & Cons

Pros

• Good conductivity from 34-strand tinned copper per core makes soldering and connections reliable.
• Durable PVC jacket resists abrasion and sunlight, extending cable life in exposed runs.
• Flexible construction and color-coded cores make installation, stripping and routing straightforward.

Cons

• Rated to 7.5A which limits use to low-to-moderate power applications and not suitable for high-current circuits.

Specifications

Our Verdict

The 100ft 18/3 stranded tinned copper wire is a practical, value-minded choice for anyone wiring LED strips, DC circuits, speakers or small automotive and marine runs where flexibility and good conductivity matter. It is not intended for high-current mains work, but for its intended uses it offers durable insulation, clear color coding and easy handling that make installations faster and more reliable.

Frequently Asked Questions

Is this wire suitable for outdoor landscape lighting?
Yes, the PVC jacket resists sunlight and abrasion, making it appropriate for many outdoor low-voltage landscape lighting runs when protected from direct damage.

Can I use this cable for 12V LED strips?
Yes, it supports common low voltages including 5V, 12V and 24V and will handle runs within its 7.5A current limit.

Is the wire easy to solder and strip?
Yes, the fine tinned copper strands are flexible and strip cleanly, and the PVC jacket is straightforward to cut and crimp for typical installations.