Built for everyday low-voltage lighting workThis is the kind of wire that lives in the van and on the bench.
18-2 white wire is a two-conductor cable in
18 AWG, supplied by the foot so the cut matches the job rather than the spool. Two conductors, one white jacket, nothing to overthink: it's built for single-colour, two-wire connections between a driver or power supply and the fixture or LED tape at the other end. Strip, twist or crimp, land it in your connector, and move on to the next run.
Why gauge matters on LED runsOn low-voltage lighting, the enemy is voltage drop — the further the current travels, the more the last section of a run dims down compared to the first. Stepping up from a thin
22 AWG conductor to
18 AWG puts more copper in the path, which is exactly what you want when a kitchen island run, a long cove detail or a display case circuit has to stay even end to end. As a habit, keep the wire run as short as the layout allows, place the driver near the middle of long runs when you can, and feed from both ends on stubborn installations. Those three moves plus a proper gauge solve most "why is the end dimmer?" callbacks.
Technical specificationsSKU: LCWIRE-182-WH
Type: 18-2 wire, two conductors
Gauge: 18 AWG
Jacket colour: white
Sold: per foot
Intended use: residential and commercial projects
Where it gets usedThink under-cabinet and over-cabinet lighting in a kitchen, a cove detail around a living room ceiling, closet and pantry strips, stair nosing lighting, a garage workbench, bathroom vanity accents, and on the commercial side, retail shelving, display cases, reception desks, backlit signage and cabinetry in a dental or salon fit-out. Anywhere the surface is white — white MDF cabinets, white ceilings, white trim — this jacket blends in so the wire reads as part of the millwork instead of an afterthought. Canadian jobs also mean cold garages, basements and seasonal spaces, so keep terminations inside enclosures or junction boxes and protect the run where it crosses framing.
Companion products and documentationPair it with your low-voltage driver, connectors and single-colour tape. If the job calls for another colour or another conductor count, the same family covers it:
18-2 black and red wire for clearly marked polarity,
18-2 wire black for dark finishes,
transparent 22-2 wire for discreet clear wiring on glass and light surfaces, and
22-5 RGB-W wire for colour-changing plus white tape. There is no spec sheet in the Documentation tab for this item — order the footage you need and reach out if you want help matching the wire to your driver and fixture layout.