What this end cap isThis is a single
finishing end cap #90, standard style, in black, with a cable hole — one unit per item, SKU
LCENDCAP-STAND-90-H-BK. Its job is simple and essential: it caps the open end of an
LED aluminum profile so the cut edge of the extrusion is never visible. An LED channel without caps always reads as unfinished — you see the hollow chamber, the wiring and the saw cut. With a cap in place, the run reads as one continuous piece of trim, whether it is surface-mounted under a cabinet, recessed into millwork or suspended over a counter.
With hole vs. without holeThe
hole version is meant for the power-entry side of the run. The opening guides the lead wire out of the channel cleanly, keeps it centred and reduces strain on the connection point where the conductor leaves the profile — a real advantage on runs that get bumped, cleaned or serviced. The solid cap, with no opening, is typically used on the opposite, closed end. A typical single run therefore uses one cap with a hole and one without; longer installations split into several sections may need more. Ordering caps individually means you buy exactly the mix you need instead of guessing.
Fit, finish and installationEnd caps are
profile-specific: the #90 shape has to match the channel series you are installing, so confirm your extrusion profile before ordering. There is no hardware to deal with — a
press-fit (friction fit) holds the cap securely in the end of the extrusion. Press evenly on the cap face rather than on one corner so it seats square; if the profile will be handled often, moved, or installed in a display that gets rearranged, a small dab of adhesive adds insurance. The recommended sequence is: install the LED tape in the channel, route the lead wire, fit the
hole-side cap, then mount the profile and add the diffuser. Always cut power before working on the run.
Where it helpsBecause it seals the opening, the cap helps keep dust and insects out of the channel and protects the wire exit point. That matters most where the lighting is inspected at eye level: kitchen under-cabinet and toe-kick lighting, custom
millwork and cabinetry, jewellery and retail display cases, reception desks and bar fronts, shelving, closets, stair nosings and workshop benches. The black finish is the natural pick for black extrusions, dark cabinetry, matte-black hardware schemes and commercial fit-outs where a silver cap would stand out. For contractors, having spare caps on the truck saves a return trip when a channel gets cut down on site.
Related parts and documentationSeveral profile styles and matching accessories are available, including caps with and without a wire hole. For a different standard channel, see the
Finishing end cap #11 (with hole) and the
Finishing end cap #11 (no hole); for flexible neon-style runs, look at the
Flex neon endcap 3x6 (with hole) or the
Flex neon endcap 6x6 (without hole). No spec sheet is published for this accessory; the important check is dimensional — match the cap shape to your channel series, and pair it with a solid cap for the far end of the run.