MJSS-12/24V COB Ultra-Long LED Strip Light (#480d)
8mm · 24V · 480LEDs · 50mm/cut
Model: 480d

Overview
The DENO LED 480d COB Ultra-Long LED strip light is a high-performance 24V solution, featuring 480 LEDs/meter and an impressive 100m maximum length without welding. Its COB encapsulation design minimizes thermal resistance, offering a seamless, dot-free lighting experience with a wide 180° beam angle. This product is ideal for large-scale commercial and architectural lighting applications where extensive, uniform illumination is crucial. DENO LED products are designed for r...
Description
MJSS-12/24V COB Ultra-Long LED Strip Light | 8mm | 24V | 480LEDs | 50mm/cut | #480d 100m Without welding .Mini Cutting COB strip is a high-density led lighting strip made by COB encapsulation, which can reduce the thermal resistance of the high-density strip circuit system
Specifications
| LED QTY | 480 |
|---|---|
| PART NO | DL-COBA240V12/24-MJSS-* |
| SMD TYPE | COB |
| CUTTABLE UNIT | 50mm |
| DIMMABLE | Yes |
| LIFESPAN | 50000 |
| PCB WIDTH | 8 |
| WARRANTY | 5 Years |
| BEAM ANGLE | 180° |
| LENGTH MAX | 100m |
| COPPER FOIL | 1.3oz |
| CIRCUIT TYPE | C.V. |
| INPUT VOLTAGE | 24V |
| OPERATING TEMPERATURE | -25~40°C;Tc:75°C(max) |
Applications
- Cove, wall-wash & perimeter lighting — Coves, recesses, wall-wash details and ceiling perimeters where a continuous, uniform line of light is required.
- Showroom & hospitality display lighting — Shelving, display cases, reception desks and signage backlighting in shops, showrooms and hospitality spaces.
- Kitchen & wardrobe under-cabinet lighting — Kitchen, wardrobe and furniture task lighting where the strip stays hidden and only the light is seen.
Request a quotation for #480d
DENO LED is a Shenzhen-based LED strip manufacturer with its own Foshan production base. Send the run length, voltage, CCT/CRI and IP rating you need and our engineering team replies with a specification sheet, wiring plan and price — OEM/ODM and fully custom builds included.
- Warranty: 5 years
- Compliance: CE · UL · RoHS
- Bonding wire: 99.99% pure gold
- Copper foil: 99.9% pure copper FPCB
Photometric Performance — CCT × CRI Efficacy Matrix
Peak measured luminous efficacy: 133 lm/W at 4000K, Ra 80, ErP energy class E (Grade DL (2nd Tier) · 9.6W/m).
All values are measured at the stated power density and ambient 25 °C, reported as luminous efficacy in lumens per watt (lm/W), luminous flux per metre (lm/m) and the corresponding EU ErP (2019/2015) energy class.
Grade DL (2nd Tier) · 9.6W/m
| CCT (K) | Ra 80 — Luminous Efficacy (lm/W) | Ra 80 — Luminous Flux (lm/m) | Ra 80 — ErP Energy Class | Ra 90 — Luminous Efficacy (lm/W) | Ra 90 — Luminous Flux (lm/m) | Ra 90 — ErP Energy Class | Full Spectrum (Ra 95+) — Luminous Efficacy (lm/W) | Full Spectrum (Ra 95+) — Luminous Flux (lm/m) | Full Spectrum (Ra 95+) — ErP Energy Class |
|---|---|---|---|---|---|---|---|---|---|
| 1800 K | 101.3 lm/W | 972.5 lm/m | F | 81 lm/W | 777.6 lm/m | G | — | — | — |
| 2300 K | 112.8 lm/W | 1082.5 lm/m | E | 90.2 lm/W | 866.4 lm/m | F | — | — | — |
| 2700 K | 118.5 lm/W | 1137.5 lm/m | E | 97.6 lm/W | 936.8 lm/m | F | — | — | — |
| 3000 K | 126.8 lm/W | 1217.6 lm/m | E | 102.7 lm/W | 986 lm/m | F | — | — | — |
| 3500 K | 128.8 lm/W | 1236.9 lm/m | E | 104.5 lm/W | 1003.4 lm/m | F | — | — | — |
| 4000 K | 133 lm/W | 1276.4 lm/m | E | 107 lm/W | 1027.5 lm/m | F | — | — | — |
| 5000 K | 132.8 lm/W | 1274.5 lm/m | E | 107 lm/W | 1027.5 lm/m | F | — | — | — |
| 6500 K | 121.4 lm/W | 1165.5 lm/m | E | 102.6 lm/W | 985.1 lm/m | F | — | — | — |
Grade DL (2nd Tier) · 12W/m
| CCT (K) | Ra 80 — Luminous Efficacy (lm/W) | Ra 80 — Luminous Flux (lm/m) | Ra 80 — ErP Energy Class | Ra 90 — Luminous Efficacy (lm/W) | Ra 90 — Luminous Flux (lm/m) | Ra 90 — ErP Energy Class | Full Spectrum (Ra 95+) — Luminous Efficacy (lm/W) | Full Spectrum (Ra 95+) — Luminous Flux (lm/m) | Full Spectrum (Ra 95+) — ErP Energy Class |
|---|---|---|---|---|---|---|---|---|---|
| 1800 K | 99.6 lm/W | 1195.3 lm/m | F | 79.6 lm/W | 955.8 lm/m | G | — | — | — |
| 2300 K | 110.9 lm/W | 1330.5 lm/m | E | 88.7 lm/W | 1064.9 lm/m | F | — | — | — |
| 2700 K | 116.5 lm/W | 1398.1 lm/m | E | 96 lm/W | 1151.4 lm/m | F | — | — | — |
| 3000 K | 124.7 lm/W | 1496.5 lm/m | E | 101 lm/W | 1211.9 lm/m | F | — | — | — |
| 3500 K | 126.7 lm/W | 1520.2 lm/m | E | 102.8 lm/W | 1233.3 lm/m | F | — | — | — |
| 4000 K | 130.7 lm/W | 1568.9 lm/m | E | 105.2 lm/W | 1262.9 lm/m | F | — | — | — |
| 5000 K | 130.5 lm/W | 1566.5 lm/m | E | 105.2 lm/W | 1262.9 lm/m | F | — | — | — |
| 6500 K | 119.4 lm/W | 1432.5 lm/m | E | 100.9 lm/W | 1210.7 lm/m | F | — | — | — |
Related models in this series
- COB LED Strip Light (#COB-512-8mm)
- COB LED Strip Light (#576-CCT-5)
- COB LED Strip Light (#528-10-24V)
- COB LED Strip Light (#576-CCT)
- COB LED Strip Light (#6701)
- COB LED Strip Light (#576-W)
- COB LED Strip Light (#360-W)
- COB LED Strip Light (#480d-L30)
See every model in COB LED Strip Series or narrow to Cob Single. Compare wattage, lumen output and run length in the ProCalc parameter library, or request OEM/ODM pricing on the custom manufacturing page.
Frequently Asked Questions
What is the maximum continuous run length for this COB LED strip?
This 480d COB LED strip offers an ultra-long maximum continuous run of 100 meters without the need for additional power injection or welding.
Is this COB LED strip suitable for dimming applications?
Yes, the 480d COB LED strip is fully dimmable, allowing for flexible light control and ambiance adjustment in commercial settings.
What is the cutting increment for installations requiring custom lengths?
The 480d COB LED strip features a convenient 50mm cutting increment, enabling precise customization for various project requirements.
Does DENO LED offer customization options for large B2B orders?
Yes, for large B2B orders, DENO LED can discuss customization options and provide tailored solutions to meet specific project needs.
Is a COB LED strip better than an SMD strip for dot-free lighting?
Yes for continuous linear light. A COB LED strip spreads phosphor over the whole surface, so there are no visible dots even without a deep diffuser, while a standard SMD strip needs 240 LEDs/m plus a frosted cover to get close. Choose SMD only when you need higher output per watt or RGB pixel control.
Which aluminum channel should I use with this COB LED strip?
Match the channel inner width to the strip PCB width — 8mm and 10mm COB strips fit DENO 10x10mm, 12x8mm and 17.5x7mm profiles. A surface mount channel suits shelves and ceilings, a recessed trimless channel suits plaster-in cove lines, and the aluminum body also acts as the heat sink the strip needs.
8mm COB LED Strip — Buyer Questions
When should you use an 8mm COB LED strip instead of 10mm?
Use the 8 mm board when the profile is narrow or the strip must hide inside joinery, and the load stays under about 10W/m. It carries 480 to 576 LEDs/m with the same dot-free 180° line as the 10 mm build, but with less copper it is more sensitive to long runs and high drive currents.
- Series 8mm COB LED Strip range
- Related series 10mm COB tape for higher wattage
- Related series narrow aluminium channels
- Product 576-CCT-5 8mm COB board
Is an 8mm dot-free LED strip bright enough for cove lighting?
Yes for most coves. At 8–10W/m an 8 mm COB tape puts out roughly 1200–1600 lm/m at 4000K, which lifts a 2.7–3 m ceiling comfortably. For double-height atriums or wall-wash throws over 4 m, step up to a 10 mm board or the SOB high-power line.
- Series 8mm COB LED Strip range
- Guide cove lighting output guide
- Related series high power dot-free alternative
Can an 8mm COB LED strip be mounted in a shallow profile?
Yes, and that is its main advantage. Because the emitting surface is already continuous, an 8 mm COB tape needs no diffuser gap — 6–8 mm of depth behind a frosted lens is enough for an even line, where an SMD tape would need 15–20 mm to hide dots.
- Series 8mm COB LED Strip range
- Related series shallow recessed profiles
- Related series COB LED strip series overview
- Product 576-W shallow-profile board
What voltage options exist on the 8mm COB board?
12V for short furniture and cabinet runs, 24V as the project standard, and 48V where a single feed has to cover 10 m or more. The 8 mm 24V builds are the volume sellers; 5V USB versions are available on request for display and consumer products.
- Series 8mm COB LED Strip range
- Related series 48V long-distance boards
- Guide voltage selection tool
- Product 360-W voltage-matched 8mm board
Do you supply 8mm COB LED strip in 5m, 15m and 30m reels?
Yes. Standard 24V reels ship at 5 m, and roll-to-roll unibody production allows continuous 15 m and 30 m reels without a solder joint along the run. Long reels remove the dark gaps that reel-to-reel joints create in a continuous cove line.
- Series 8mm COB LED Strip range
- Guide roll-to-roll unibody production
- Guide custom reel lengths
- Product 480d-L30 long reel build
Single Colour COB LED Strip — Buyer Questions
Which colour temperature should a single colour COB LED strip be?
Pick 2700K–3000K for hospitality and residential warmth, 4000K for offices and kitchens, and 6000K–6500K for retail, task and technical areas. DENO bins every single colour COB LED strip to SDCM ≤3 so two reels installed end to end read as one colour, and 1800K to 2400K amber options are available for façade and bar work.
- Series single colour COB LED strips
- Related series 1 SDCM tight-binned strips
- Guide choosing CRI 90, 95 or 98
How do you cut and connect a COB LED strip?
Cut only on the marked copper pads, then solder or use a clamp connector rated for the board width. Cut units on DENO COB tape run from 22.7 mm on the 4.5 mm 12V board to 50 mm on the 24V 360 LEDs/m board, so check the cutting unit before designing joinery — the shortest usable piece equals one cut unit.
- Series single colour COB LED strips
- Guide plan cut units and feed points
- Related series channels and end caps
- Product 528-10-24V short cut-unit board
Which COB LED strip works best for under cabinet and shelf lighting?
A narrow 4.5 mm or 8 mm 12V/24V COB tape at 480–528 LEDs/m is the usual answer. It fits shallow aluminium channel under a cabinet or inside a shelf edge, the dot-free line hides no hardware, and the 180° beam fills the worktop evenly without the striping an SMD tape shows at close range.
- Series single colour COB LED strips
- Related series 4.5mm slim COB tape
- Related series 8mm COB tape
- Product COB-512-8mm narrow COB board
Need more than 12W/m of dot-free light? Meet the SOB upgrade
COB LED strip is the reference for seamless, dot-free lines — but the shared phosphor layer caps most builds around 12W/m and a 5 m single feed. DENO's SOB series is the direct upgrade: the same continuous line on flip-chip dies and 105 µm copper, carrying 24W/m, CRI 95 and 15 m runs from one feed. Spec the COB range for coves and joinery; step up to SOB when the lux target or the run length says so.