What this wire isThis is a
two-conductor 18 AWG wire with one black conductor and one white conductor, sold and cut by the foot. It is the everyday workhorse of low voltage lighting: the run between a driver or power supply and a strip, the jumper between two fixture sections, the extension from a transformer to a remote load. Two conductors, two clearly different colours, nothing extra to strip or sort. If you have been searching for 18/2 wire,
18 gauge speaker-style two-wire, lamp cord or plain LED hookup wire, this is the product that answers all of those names.
Why 18 AWG mattersConductor size is the single most overlooked detail in low voltage installs. Thinner wire on a long run means more voltage drop, and voltage drop shows up as tape that looks bright at the feed and dull at the far end, or drivers that never quite reach their rated output. Stepping up to
18 AWG instead of a thinner 22 gauge conductor gives you more copper cross-section for the same run, which helps hold light output consistent from the first emitter to the last. As a rule of thumb, keep the feed as short as practical, place the driver near the load when you can, and feed long tape runs from both ends rather than pushing everything through a single long leg.
Technical specificationsSKU: LCWIRE-182-BK-WH
Type: 18-2 wire, two conductors
Gauge: 18 AWG
Conductor colours: black and white
Sold: per foot (cut to your length)
Intended use: residential and commercial projects
Installation and terminationsPlan the route before you cut: measure the path the wire will actually take, including the drop down a wall, the turn at a corner and the service loop you want at the driver end. Strip only as much jacket as the terminal needs, keep the strands twisted, and use solderless connectors, a terminal block or soldered joints for a permanent, low-resistance connection. Respect the colour convention throughout the job — black to one polarity, white to the other — so the next person who opens that junction box can read the circuit in a second. Secure the wire with staples or clips rated for low voltage cable so nothing pulls on the terminations, and never bury a splice where you cannot access it later. Always follow the Canadian Electrical Code and your local inspector's requirements, and when the circuit or the location is outside your comfort zone, bring in a licensed electrician.
Compatible products and applicationsUse it for under-cabinet and toe-kick strip lighting, cove and crown moulding runs, closet and pantry lighting, stair and handrail accents, retail display cases, backlit signage, reception desks and restaurant millwork. On multi-colour jobs, switch to the
22-4 RGB wire or the
22-5 RGB-W wire for the extra channels, use the
transparent 22-2 wire where the run is visible and you want it to disappear, and pick up the
18-2 wire in black when a single-colour jacket suits the installation better. No spec sheet or IES file is published for this item; the details above reflect everything specified for it.