COB LED Strip Lights (Dot-Free)
Dot-free COB LED strip from 280 to 1,600 LEDs per meter — 12V, 24V, and 48V long-run options, with UL Listed options available.
Our COB (also called FCOB) flexible strip and tape light program covers the full architectural range of high-density, dotless LED strip: 280 to 1,600 LEDs per meter, Color Rendering Index, 0–100: how truthfully the light shows colors next to a reference source. Ra≥90 is the usual bar for interiors. 90–98, and color temperatures from 2700 K to 6500 K, on PCB widths from 2.7 to 30 mm.
Ingress ratings run IP20 through IP68 for dry, damp, and wet locations. Choose 12 V or 24 V constant-voltage strip, or the 48 V engineering series for single-feed runs up to 65 ft (20 m).
UL Listed options are available, with documentation ready for your submittal package.
Why contractors spec our COB tape light
Dotless, uniform light
A continuous phosphor line with no visible hotspots — even without a diffuser.
High CRI — Ra90 standard, up to 98
True color rendering with ±2 SDCM binning across every reel.
12V · 24V · 48V options
Match the voltage to the run — from short accents to 65 ft (20 m) single feeds.
Free-cut & mini-cut options
Cut steps down to 12.5 mm — or anywhere along the run with the free-cut series.
High density up to 1,600 LEDs/m
Engineering-grade density for zero-shadow edge lighting and tight-radius details.
UL Listed options available
Certification held by the original manufacturing partner. Documentation available upon request.
Eight COB series, one spec conversation
Standard COB
The workhorse dotless strip for coves, channels, and millwork — 280 to 512 LEDs per meter on an 8–10 mm PCB, in 12V and 24V.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C312-8 | 312 | 8mm | 12V/24V | Ra≥90 |
| UT-C320-8 | 320 | 8mm | 12V/24V | Ra≥90 |
| UT-C384-8 | 384 | 8mm | 24V | Ra≥90 |
| UT-C480-8 | 480 | 8mm | 12V/24V | Ra≥90 |
| UT-C280-10 | 280 | 10mm | 24V | Ra≥90 |
| UT-C512-10 | 512 | 10mm | 12V/24V | Ra≥90 |
High-Density & Engineering COB
600 to 1,600 LEDs per meter, including dual-row designs, for zero-shadow edge lighting, backlit stone, and diffuser-free details where uniformity is non-negotiable.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C960-15 | 960 | 15mm | 24V | Ra≥90 |
| UT-C1600-30 | 1600 | 30mm | 24V | Ra≥90 |
| UT-C600D-12 | 600 | 12mm dual-row | 24V | Ra≥90 |
| UT-C960D-12 | 960 | 12mm dual-row | 24V | Ra≥90 |
| UT-C1328-10 | 1328 | 10mm | 24V | Ra≥90 |
Ultra-Narrow COB
PCB widths down to 2.7 mm for reveal details, handrails, and micro channels where standard 8 mm strip will not fit.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C400-3 | 400 | 2.7/3mm | 12V/24V | Ra≥90 |
| UT-C400-5 | 400 | 4/5mm | 12V/24V | Ra≥90 |
| UT-C400-5-LV | 400 | 5mm | 5V | Ra≥90 |
| UT-C480-4 | 480 | 3/4/5mm | 12V/24V | Ra≥90 |
| UT-C300-6 | 300 | 6.5mm bare copper | 12V | Ra≥80-90 |
| UT-C528-3 | 528 | 3mm | 12V | Ra≥90 |
Free-Cut & Mini-Cut COB
Free cut COB LED strip cuts at any point along the run; mini-cut and solder-free series step down to 12.5 mm. Both end field-measurement guesswork on cabinet runs and shelf edges.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C528-8-FC | 528 | 8mm | 12V/24V | Ra≥90 |
| UT-C528-10 | 528 | 10mm | 12V/24V | Ra≥90 |
| UT-C320-6-SF | 320 | 6.6mm solder-free | 12V | Ra≥90 |
| UT-C480-7 | 480 | 7mm | 24V | Ra≥90 |
Colored COB
Saturated single-color red, green, blue, ice blue, violet, and pink — the same dotless line in signage and accent colors, without pixel dots.
| Model | Color (wavelength) |
|---|---|
| UT-C480-8-RD | Red 620±5nm |
| UT-C480-8-GN | Green 540±5nm |
| UT-C480-8-BL | Blue 455±5nm |
| UT-C480-8-IB | Ice Blue 484±5nm |
| UT-C480-8-VT | Violet 380±5nm |
| UT-C480-8-PK | Pink 610±5nm |
| All colors: 480 LEDs/m · 8mm PCB · 12V/24V · 3.2 W/ft (10.5 W/m) · cut 0.98/1.97 in (25/50 mm). | |
Side-View & S-Shape COB
Side-emitting strip lights the edge, not the face — for channel letters and profiles; S-shape PCB bends flat around curves down to a 30 mm radius.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C320-6-SV | 320 | 6mm side-view | 12V | Ra≥90 |
| UT-C400-8-SS | 400 | 8mm S-shape | 24V | Ra≥90 |
48V & Long-Run COB
48V and 24V constant-current designs feed up to 65 ft (20 m) from a single end — one driver, no mid-run injection, no visible voltage drop. The constant-current (CC) models need a constant-current driver.
| Model | LEDs/m | Width | Voltage | CRI |
|---|---|---|---|---|
| UT-C480-8-48V | 480 | 8mm | 48V | Ra≥90 |
| UT-C480-8-CC | 480 | 8mm | 24V CC | Ra≥90 |
| UT-C420-8-CC | 420 | 8mm | 24V CC | Ra≥90 |
| UT-C420-10-CC | 420 | 10mm | 24V CC | Ra≥90 |
SCOB — Dot-Free Alternatives
SCOB strips use ultra-compact SMD packages to achieve the same dot-free result as classic COB — with higher efficacy per watt in some bins. The packaged LEDs are sorted before assembly: one bin, SDCM<3. At 24V a SCOB run feeds 49 ft (15 m) from one end, or 98 ft (30 m) fed from both ends.
| Model | Type | LEDs/m | CRI | Power W/ft (W/m) | Efficacy | Width | Cut increment | Voltage | Max run |
|---|---|---|---|---|---|---|---|---|---|
| UT-SC300-15 | Free-Cutting | 300 | Ra≥90 | 4.6 W/ft (15 W/m) | 100 lm/W | 10mm | Free-cut anywhere | 12V / 24V | 49 ft (15 m) single feed @24V · 98 ft (30 m) both ends |
| UT-SC336SS-6 | Super Slim | 336 | Ra≥90 | 1.8 W/ft (6 W/m) | 115 lm/W | 5mm | 0.83 in (21 mm) | 24V | 49 ft (15 m) single feed @24V · 98 ft (30 m) both ends |
| UT-SC320HE-15 | High Efficacy | 320 | Ra≥90 | 4.6 W/ft (15 W/m) | 130-140 lm/W | 10mm | 0.98 in (25 mm) @24V / 0.49 in (12.5 mm) @12V | 12V / 24V | 49 ft (15 m) single feed @24V · 98 ft (30 m) both ends |
| UT-SC320CRI97-15 | High CRI | 320 | Ra≥97 | 4.6 W/ft (15 W/m) | 105 lm/W | 10mm | 0.98 in (25 mm) @24V / 0.49 in (12.5 mm) @12V | 12V / 24V | 49 ft (15 m) single feed @24V · 98 ft (30 m) both ends |
| UT-SC308TW-18 | Tunable White | 308 | Ra≥90 | 5.5 W/ft (18 W/m) | 110 lm/W | 10mm | 0.66 in (16.7 mm) @12V / 1.31 in (33.3 mm) @24V | 12V / 24V | 49 ft (15 m) single feed @24V · 98 ft (30 m) both ends |
Master spec table
Representative models across all eight series. Full photometric files and IES data ship with your quote.
How to read our model numbers: UT-C{LEDs per m}-{PCB width mm}; suffixes: FC free-cut · SF solder-free · SV side-view · SS S-shape · CC constant current · 48V long-run · D dual-row · LV 5V low-voltage · RD/GN/BL/IB/VT/PK colors.
Tap a row for full specs.
| Model | LEDs/m | PCB width | Power W/ft (W/m) | CRI | CCT | Voltage | Cut increment | Max run | IP |
|---|---|---|---|---|---|---|---|---|---|
| UT-C312-8 | 312 | 8mm | 3.4 W/ft (11 W/m) | Ra≥90 | 2700-6000K | 12V/24V | 0.76/1.51 in (19.23/38.46 mm) | 32 ft (10 m) no voltage drop | IP20 |
| UT-C320-8 | 320 | 8mm | 2.4 W/ft (8 W/m) | Ra≥90 | 2700-6000K | 12V/24V | 0.98/1.97 in (25/50 mm) | 16 ft (5 m)/feed | IP20 |
| UT-C384-8 | 384 | 8mm | 3.0 W/ft (10 W/m) | Ra≥90 | 2700-6500K | 24V | 1.23 in (31.25 mm) | 32 ft (10 m) no voltage drop | IP20 |
| UT-C480-8 | 480 | 8mm | 3.2 W/ft (10.5 W/m) | Ra≥90 | 2700-6000K | 12V/24V | 0.98/1.97 in (25/50 mm) | 16 ft (5 m)/feed | IP20 |
| UT-C960-15 | 960 | 15mm | 7.6 W/ft (25 W/m) | Ra≥90 | 2700-6500K | 24V | 1.97 in (50 mm) | 10 ft (3 m)/feed | IP20 |
| UT-C1600-30 | 1600 | 30mm | 12.2 W/ft (40 W/m) | Ra≥90 | 2700-6500K | 24V | 0.98 in (25 mm) | 10 ft (3 m)/feed | IP20 |
| UT-C600D-12 | 600 | 12mm dual-row | 7.3 W/ft (24 W/m) | Ra≥90 | 2700-6500K | 24V | 0.79 in (20 mm) | 16 ft (5 m)/feed | IP20 |
| UT-C400-3 | 400 | 2.7/3mm | 2.1 W/ft (7 W/m) | Ra≥90 | 2700-6500K | 12V/24V | 0.39/0.79 in (10/20 mm) | 16 ft (5 m)/feed | IP20 |
| UT-C400-5-LV | 400 | 5mm | 2.4 W/ft (8 W/m) | Ra≥90 | 3000-6500K | 5V | 0.39 in (10 mm) | 6.5 ft (2 m)/feed | IP20 |
| UT-C528-8-FC | 528 | 8mm | 4.0 W/ft (13 W/m) | Ra≥90 | 2700-6000K | 12V/24V | free cut (any point) | 16 ft (5 m)/feed | IP20 |
| UT-C320-6-SF | 320 | 6.6mm solder-free | 2.1 W/ft (7 W/m) | Ra≥90 | 3000-6500K | 12V | 0.49 in (12.5 mm) | 10 ft (3 m)/feed | IP20 |
| UT-C480-8-RD | 480 | 8mm | 3.2 W/ft (10.5 W/m) | — | Red 620±5nm | 12V / 24V | 0.98/1.97 in (25/50 mm) | 16 ft (5 m)/feed | IP20 |
| UT-C320-6-SV | 320 | 6mm side-view | 2.4 W/ft (8 W/m) | Ra≥90 | 2700-6500K | 12V | 0.25 in (6.25 mm) | 10 ft (3 m)/feed | IP20 |
| UT-C480-8-48V | 480 | 8mm | 2.4 W/ft (8 W/m) | Ra≥90 | 2700-6500K | 48V | 1.97 in (50 mm) | 65 ft (20 m) single feed | IP20 |
| UT-C480-8-CC | 480 | 8mm | 2.3 W/ft (7.5 W/m) | Ra≥90 | 2700-6500K | 24V CC | 1.97 in (50 mm) | 65 ft (20 m) constant current | IP20 |
Where dotless strip earns its keep
Coves & Ceiling Details
A continuous, dot-free line across ceiling returns and reveals — no diffuser needed to hide LED hotspots.
Under-Cabinet & Task
Shadow-free task light with no dotting reflected in stone or gloss surfaces; 90+ CRI renders food and finishes true.
Architectural Reveals
Slots, reveals, handrails, and stair nosings lit as one clean line, spec'd to the foot at 95 CRI and ±2 SDCM.
Retail & Display
Shelf edges, display cases, and millwork where merchandise color must read true under close, even light.
Certifications
Products are sourced from qualified manufacturing partners and are available with UL Listed, ETL Listed, FCC compliant, RoHS compliant and other applicable configurations. Certification coverage varies by model. Certification is held by the original manufacturing partner. Documentation and listing information are available upon request.
CE-compliant options available for buyers outside North America — contact us for EU specifications.
Related guides
Specification, power and installation guides for this range.
COB LED strip questions
Should I choose 12V or 24V COB LED strip?
Choose 24V for most architectural work: it halves the current for the same wattage, so wire and connectors carry less and long runs need fewer feed points. 12V suits short runs under 16 ft (5 m) and systems that already run on 12V. For runs past 32 ft (10 m), our 48V series feeds up to 65 ft (20 m) from a single end.
How do I cut COB LED strip — and where?
Cut only at the marked cut points, straight across the printed cut line with sharp shears. Standard 24V COB cuts every 25–50 mm; our mini-cut series steps down to 12.5 mm and the free-cut series cuts at any point along the run. Re-seal IP65+ strip with an end cap after cutting.
How do I read the COB spec table above?
Read the voltage, the cut increment and the max run together. The max run column means different things on different rows: per feed on the standard rows, no voltage drop on UT-C384-8, a single feed on the 48V rows, constant current on the CC rows, and single feed or both ends at 24V on the SCOB rows. Watts per foot sizes the driver; keep the load at or below 80% of the driver rating.
What is the difference between COB and SMD LED strip?
COB strip mounts bare chips under a continuous phosphor layer for a dot-free line of light; SMD strip uses discrete packaged LEDs that can show hotspots. A typical COB strip carries 280–800 chips per meter; standard SMD strip carries 60–120 packages per meter, and high-density SMD reaches 480. For channels without diffusers and edge-lit details, COB is the safer spec.
How long do COB LED strips last?
Rated life is L70 ≥ 50,000 hours — the point where output falls to 70% of initial. That is more than 17 years at 8 hours per day. Proper heat sinking in an aluminum channel is the single biggest factor in reaching rated life.
Do COB LED strips get hot?
They run warm, not hot. Mounting in an aluminum channel lowers the operating temperature and protects lumen maintenance, and series above 800 LEDs/m should always be channel-mounted. Check the model's datasheet for its thermal limits.
How many meters can I run on a single feed?
It depends on the series, and the spec table lists the limit for every model. The standard 12V/24V rows, such as UT-C320-8 and UT-C480-8, take 16 ft (5 m) per feed; UT-C384-8 lists 32 ft (10 m) with no voltage drop; the high-density rows take 10 ft (3 m) per feed; and the 48V and constant-current series feed up to 65 ft (20 m) from a single end. The SCOB rows run 49 ft (15 m) from one end at 24V, or 98 ft (30 m) fed from both ends. Longer runs use more feed points or feed from both ends.
Are COB LED strips dimmable?
Yes — every white COB series dims smoothly to below 1% with a compatible driver. Pair with a TRIAC, 0-10V, or DALI dimmable driver depending on the control system; we match the driver at quote time. All pairings are verified flicker-free before shipment.
Which COB strip suits a jewelry or retail display case?
A high-CRI COB strip, CRI 95 or above with a strong R9, in a narrow channel with an opal diffuser so the line is dotless and the stones show their color. 3000K to 4000K suits gold and warm metals, 4000K to 5000K diamonds and silver, and a tunable white strip lets one case do both.
Spec your COB project
Send your project details — an engineer replies with matched strip, drivers, and documentation.
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