Two Different Products Share This Collection, and the Job Picks Between Them
This range mixes finished linear luminaires with flexible tape and
ribbon, and the first decision is which of the two the job actually
needs, because they install, wire, and dim in completely different ways.
Where the space is a plain utility area rather than a designed one,
Lumera's strip lights collection is the better starting point.
A Finished Luminaire or a Flexible Circuit
A linear fixture arrives as a complete luminaire, with the LEDs,
driver, and housing in one body that mounts and wires at line voltage
like any other fixture. Tape and ribbon arrive as a flexible circuit: it
needs a low-voltage driver sized to the run and, in most finished work,
an aluminum channel that carries heat away and keeps the line straight.
Fixtures suit exposed runs where the product itself is seen. Tape suits
concealed detail, coves, shelves, and millwork, where only the light
shows.
Direct, Indirect, and Direct-Indirect
On the fixture side, every other decision is downstream of which way
the light leaves the housing. A direct fixture aims all its output down
at the work plane, efficient and crisp with the hardest shadows. An
indirect fixture aims upward and lights the room by reflection off the
ceiling, trading some efficiency for soft, nearly shadow-free light from
a source that is never in anyone's sightline, which matters in a room
full of screens.
A direct-indirect fixture splits the output between both, which is
why it dominates modern office specifications: usable task light on the
desk and a lit ceiling that stops the room feeling like a cave, from one
fixture and one circuit.
Where the ceiling is a suspended grid, the equivalent decision is made with a recessed grid fixture instead, and Lumera's troffers collection covers those.
Suspended, Surface, or Recessed
Mounting follows the ceiling. Suspended fixtures hang on cable or
stems below an open ceiling, the only arrangement that permits any
indirect component. Surface mounting fixes the body flat where there is
no room to hang, and recessed profiles set into a slot so the fixture
reads as architecture rather than equipment.
Suspension height is a real decision, not a detail. Hang too close to
the ceiling and an indirect fixture produces a bright hot spot directly
above itself rather than an even wash. Most manufacturers publish a
minimum drop for exactly this reason, and it is usually farther from the
ceiling than people expect.
Ordering a Continuous Run
Linear projects go wrong at the ordering stage, and it costs time
rather than money. A forty foot continuous run is not four ten foot
fixtures placed end to end. It is a linkable run ordered by total
length, built from starter, middle, and end sections, joined with the
supplied couplers, and closed with end caps at each termination, and
several architectural lines here are specified in one foot increments.
Those parts are frequently separate line items, and one feed
typically powers several linked sections up to the driver's rated load,
so the feed count is part of the order too. Work the run out on paper,
count the joints, and confirm what each listing actually includes before
placing the order.
Alignment matters just as much as parts. A continuous run reads as
one line only if the mounting points are set accurately, so the layout
has to be surveyed rather than measured off a drawing, particularly
where the ceiling is not perfectly flat.
Powering Tape and Ribbon
The flexible side works the other way around. Tape and ribbon here
run on 12V or 24V, the driver has to match that voltage exactly, and its
capacity has to cover the total wattage of the run with headroom.
Cut only at the marked cut points, and keep runs within the
manufacturer's stated maximum length so the far end does not dim
visibly. Lumera's LED drivers and power supplies collection carries the low-voltage units these runs pair with.
Lens, Diffusion, and Visible Brightness
The lens does more work in this category than in any other, because
the fixture is meant to be looked at. A frosted or opal diffuser hides
the individual LEDs so the fixture reads as a continuous line rather
than a row of dots, at the cost of some efficiency, and COB ribbon
achieves the same dot-free look on the flexible side. A clear or
microprismatic lens keeps more of the output but can show pixelation and
produces a brighter apparent source.
In an office, ask for the glare rating. A fixture can measure
correctly on a light meter and still be uncomfortable to sit beneath if
its visible surface is too bright, and glare is what people complain
about weeks after a retrofit.
Color Temperature and Rendering
Architectural work is where color quality actually gets noticed.
Fixed options across this range run from 2700K through 5000K, with
tunable white fixtures reaching past that, and warmer settings suit
hospitality and residential-feeling spaces, neutral settings around
3500K to 4000K are the default for office and retail, and cooler
settings appear where alertness matters more than comfort.
Rendering deserves real attention here. In retail, hospitality, and
any space where finishes or merchandise are being judged, a higher
rendering index changes how the space reads, and 90 plus CRI versions
exist on the architectural side of this range. Check the published
figure rather than assuming it from the color temperature, since the two
are unrelated.
Dimming and Controls
Dimming is set by the driver. On the architectural side that
frequently means a low-voltage control input with additional conductors
reaching every fixture, which on a continuous run has to be planned as
part of the run itself rather than added afterward. On the flexible side
the tape dims through its driver, so the control decision happens at
the driver.
Energy codes in many jurisdictions also require automatic shutoff,
multi-level control, or daylight response in the space types this
lighting serves, so controls are frequently compliance items. Lumera's ELV and 0-10V dimmers collection carries the matching controls.
When the Dedicated Collections Are the Better Filter
For a project that is entirely cove and millwork work, Lumera's tape light collection groups the flexible range on its own for faster filtering by voltage and output.
Installation and Support
Suspended fixtures need support fixed to building structure rather
than to a ceiling membrane, and in some regions seismic bracing applies
to hung lighting. Confirm the support method against local requirements
before the first section goes up, and verify the structure can carry the
load of a long run.
Connections to building wiring are licensed electrician work on both
sides of this range. On a continuous run, agree the feed points with the
electrician during layout, because moving one afterward means dropping a
section of the run.
Linear and Tape Light FAQs
What is the difference between a linear fixture and LED tape?
A linear fixture is a complete luminaire with LEDs, driver, and
housing built in, wired at line voltage. Tape is a flexible circuit that
needs a separate low-voltage driver and usually an aluminum channel.
Fixtures suit exposed runs; tape suits concealed coves, shelves, and
millwork.
What do direct, indirect, and direct-indirect mean?
Direct sends all output downward, efficient and crisp with harder
shadows. Indirect aims up and lights the room off the ceiling, soft and
nearly shadow-free, with the source out of every sightline.
Direct-indirect splits between both and carries most office jobs.
How do I order a continuous run?
Not as several standalone fixtures. A run is ordered by total length
and built from starter, middle, and end sections joined with couplers
and closed with end caps, and those parts are often separate line items.
Lay it out on paper, count the joints, and confirm what each listing
includes.
How far below the ceiling should a suspended fixture hang?
Farther than most people expect, particularly with any indirect
component. Hung too close, an indirect fixture creates a bright patch on
the ceiling directly above itself instead of an even wash.
Manufacturers publish a minimum drop for exactly this reason.
What driver does LED tape need?
A low-voltage unit matching the tape's rating, 12V or 24V, with
capacity covering the total wattage of the run plus headroom. Cut the
tape only at the marked points and respect the maximum run length so the
far end does not visibly dim. The driver location should be planned
before the walls close.
Which dimmer works with these products?
It depends on the driver. Architectural fixtures frequently use a
low-voltage control input needing extra conductors to every unit, so
check each fixture's stated control type first. Tape dims through its
own driver, so pick a dimmable driver and the control that matches it.
