Q.01
Strict Color Consistency
SDCM < 5 (3-Step MacAdam Ellipse) maintained across every production batch. Single-bin sourcing guarantees identical chromaticity across repeat orders.
Helian · COB LED Strip Manufacturer
Premium COB LED Strip Lights Manufacturer: 100% Dotless Linear Illumination
Engineered for architects, lighting designers, and OEM distributors. High CRI > 95, SDCM < 3, and seamless integration with ultra-shallow aluminum profiles.
✓ CE
✓ RoHS
✓ UL Listed
✓ 3-Year Warranty
✓ SDCM < 5
✓ Factory Direct
Helian · IP65 · 24V
Standard SMD
Discrete chips
Visible dots
Helian COB
Flip-chip
100% Dotless
119.8lm/W
Max Efficacy
>90CRI
Color Rendering
<5SDCM
3-Step Binning
3Years
Warranty
Core Features
Why COB Delivers a Flawless Light Line
Eight engineering advantages built into every Helian COB strip — engineered for architects, lighting designers and OEM distributors who refuse to compromise on light quality.
01
100% Seamless Light
Chip-on-board packaging produces a continuous, dot-free light line — no hot spots, even in shallow profiles under 6mm.
02
High CRI Consistency
CRI >90 with SDCM <5 binning — uniform, museum-grade color rendering across every reel and batch.
03
IP65 Waterproof
Silicone-coated to protect against moisture — rated IP65 for bathrooms, kitchens and wet zones.
04
Short Cutting Pitch
Precision cut points every 25mm or 50mm, with solderless connectors for fast, tool-free field installation.
05
High Luminous Efficacy
Up to 119.8 lm/W delivers more usable light per watt — lowering energy cost across large installations.
06
Uniform Wall-Wash
Continuous emitting surface eliminates dark zones and produces even light across the full length.
07
Ultra-Slim PCB 4–14mm
Four PCB widths from 4mm to 14mm fit recessed, surface and corner channels — from cove to task lighting.
08
Continuous Light Line
Chip-on-board packaging delivers uniform luminance with zero visible spacing — true continuous light, not a dotted line.
Product Lineup
Explore Our Professional COB LED Strip Series
Four IP65 waterproof PLUS widths, plus an IP20 non-waterproof R20 range — from ultra-slim 8mm to high-power 14mm RGBWW.
💧 8mm PCB · IP65
COB PLUS 8 — 8mm Ultra-Slim
Model: HL-ST20V24-Cxx-PLUS8
The narrowest profile in the lineup, built for shallow aluminum channels where every millimeter counts. Delivers seamless dot-free light in profiles as shallow as 6mm.
- Voltage: 24V DC
- Power: 5W/m / 10W/m
- CCT: 2400K – 6500K
- CRI: >90 · SDCM <5
- Max Output: 1,130 lm/m @ 10W
- Efficiency: 119.8 lm/W
- Cutting: 50mm
- Max Run: 5m
- Weight: 70 g/m
- Colors: White / R/G/B/Y/O/Pink
💧 10mm PCB · IP65 · Best Seller
COB PLUS 10 — 10mm Versatile
Model: HL-ST20V24-Cxx-PLUS10
Our most versatile and popular series. The 10mm width balances brightness, flexibility and channel compatibility — in single color, tunable CCT, RGB and addressable variants.
- Voltage: 24V DC (5V addr.)
- Power: 5W/m / 10W/m
- CCT: 2400K – 6500K
- CRI: >90 · SDCM <5
- Max Output: 918 lm/m @ 10W
- Efficiency: 95.2 lm/W
- Cutting: 25mm
- Max Run: 5m
- Weight: 78 g/m
- Colors: Single / CCT / RGB / Addr.
💧 12mm PCB · IP65 · High Output
COB PLUS 12 — 12mm High Output
Model: HL-ST20V24-Cxx-PLUS12
Higher density and wider emitting surface deliver up to 1,364 lm/m at 15W/m — ideal for primary coves, task lighting and commercial spaces where luminance matters.
- Voltage: 24V DC (12V addr.)
- Power: 5 / 10 / 15W/m
- CCT: 2400K – 6500K
- CRI: >90 · SDCM <5
- Max Output: 1,364 lm/m @ 15W
- Efficiency: 96.7 lm/W
- Cutting: 25mm
- Max Run: 5m
- Weight: 100 g/m
- Colors: Single / CCT / RGB / Addr.
💧 14mm PCB · IP65 · RGBWW Flagship
COB PLUS 14 — 14mm Flagship RGBWW
Model: HL-ST20V24-Cxx-PLUS14
The flagship series supporting full RGBW and RGBWW (RGB + warm + cool white) in a single dot-free strip. Up to 19W/m for dynamic architectural lighting.
- Voltage: 24V DC (12V addr.)
- Power: 5/10/15/19W/m
- CCT: 2400K – 6500K
- CRI: >90 · SDCM <5
- Max Output: 1,399 lm/m @ 15W
- Efficiency: 97.7 lm/W
- Cutting: 25mm
- Max Run: 5m
- Weight: 127 g/m
- Colors: Single/CCT/RGB/RGBW/RGBWW
8/10mm · IP20
COB R20 — Standard Series
Model: HL-R20Q480/XW/8 · /10
The IP20 non-waterproof COB series for indoor coves, display cases and dry-zone accent lighting. The same seamless dot-free light — with optional silicone coating available on request.
- Voltage: 12V / 24V DC
- Power: 5 / 10 / 15W/m
- CCT: 2400K – 6500K
- CRI: >90 · SDCM <5
- Density: 480 LEDs/m
- Max Output: 1,527 lm/m @ 15W
- Efficiency: 103.8 lm/W
- Cutting: 25/50mm
- IP Rating: IP20 (indoor)
- Width: 8mm / 10mm
8mm · RGB · IP20
COB R20 RGB — Color Series
Model: HL-R20Q480/10W/8VX
Full-color dot-free COB for indoor feature walls, retail displays and dry-zone accent lighting. Seamless RGB mixing with no visible LED dots.
- Voltage: 12V / 24V DC
- Power: 10W/m
- Density: 480 LEDs/m
- Width: 8mm
- Colors: Red / Green / Blue
- Extras: Yellow/Orange/Tiffany
- Wavelength: R620-630 · G520-530 · B455-465
- Cutting: 25/50mm
- IP Rating: IP20 (indoor)
- Max Run: 5m
Technical Comparison
Detailed Specifications Across All Series
Side-by-side comparison of the four IP65 PLUS widths and the IP20 R20 range. All values are typical at 25°C ambient. Swipe horizontally on mobile.
| Parameter | PLUS 8 8mm |
PLUS 10 10mm |
PLUS 12 12mm |
PLUS 14 14mm |
R20 8/10mm |
R20 RGB 8mm |
|---|---|---|---|---|---|---|
| Model Prefix | HL-ST20V24-Cxx-PLUS8 | HL-ST20V24-Cxx-PLUS10 | HL-ST20V24-Cxx-PLUS12 | HL-ST20V24-Cxx-PLUS14 | HL-R20Q480/XW | HL-R20Q480/10W/8VX |
| PCB Width | 8 mm | 10 mm | 12 mm | 14 mm | 8 / 10 mm | 8 mm |
| Voltage | 24V DC | 24V (5V addr.) | 24V (12V addr.) | 24V (12V addr.) | 12V / 24V | 12V / 24V |
| Power (W/m) | 5 / 10 | 5 / 10 | 5 / 10 / 15 | 5 / 10 / 15 / 19 | 5 / 10 / 15 | 10 |
| CCT Range | 2400K – 6500K | 2400K – 6500K | 2400K – 6500K | 2400K – 6500K | 2400K – 6500K | RGB + white |
| CRI (min) | >90 | >90 | >90 | >90 | >90 | — |
| SDCM | <5 | <5 | <5 | <5 | <5 | — |
| Max Lumen (lm/m) | 1,130 @10W | 918 @10W | 1,364 @15W | 1,399 @15W | 1,527 @15W | — |
| Max Efficiency (lm/W) | 119.8 | 95.2 | 96.7 | 97.7 | 103.8 | — |
| Cutting Length | 50 mm | 25 mm | 25 mm | 25 mm | 25 / 50 mm | 25 / 50 mm |
| Max Run Length | 5 m | 5 m | 5 m | 5 m | 5 m | 5 m |
| IP Rating | IP65 | IP65 | IP65 | IP65 | IP20 | IP20 |
| Weight (g/m) | 70 | 78 | 100 | 127 | — | — |
* All strips come standard as 5m/reel with end caps and mounting clips included. Bulk and OEM pricing available on request.
Color Options
Color Temperatures & Special Options
Seven standard white color temperatures plus a full range of single colors, tunable CCT, RGB, RGBW, and RGBWW — all in dot-free COB technology. RGB available in both IP20 and IP65 series.
White Color Temperatures (Single Color)
2400KExtra Warm
2700KWarm White
3000KSoft White
3500KNeutral White
4000KCool White
5000KDaylight
6500KCool Daylight
Single Special Colors (PLUS & R20 RGB)
Red
Green
Blue
Yellow
Orange
Pink
Tiffany Blue
Advanced Multi-Color & Tunable Options
Tunable White (CCT)
2700K – 6500K smooth dimming-to-warm via 3-channel controller. PLUS 10 / 12 / 14.
3-pin · 10W/mRGB
Full-color dot-free RGB with seamless color mixing and no visible LED dots. Available in PLUS and R20 RGB.
4-pin · 10W/m · IP20/IP65RGBW (4-in-1)
RGB + dedicated warm white chip. True white alongside millions of colors. PLUS 14.
5-pin · 15W/m · 702 lm/mRGBWW (5-in-1)
RGB + warm + cool white in one strip. Full spectrum 970 lm/m tunable. PLUS 14.
6-pin · 19W/m · 970 lm/mAddressable RGB (UCS1903)
100 ICs/m, individually addressable pixels for chasing and DMX. 5V/12V.
Data + Power · 8–13W/m
The Technology
The Evolution of Linear Lighting:
The Evolution of Linear Lighting:
COB vs. Traditional SMD
Traditional SMD strips rely on discrete chips soldered to the PCB — leaving visible dots and limiting beam spread. Helian’s flip-chip COB packages the LEDs directly onto the flexible substrate, producing a dense, uniform light line.
Traditional SMD Strip
Standard.Dotless
Visible LED dots — requires deep diffuser covers to hide individual chips.
Uniformity
Visible chip spacing creates dark zones and uneven light between LEDs.
Flexibility
Wire-bonded chips prone to micro-fractures at tight bend radii.
Color Quality
CRI 80–90 typical. Visible color shift under low-light conditions.
Light Line
Helian COB Strip
RecommendedDotless
100% continuous light line. No hot spots, even in <10mm shallow profiles.
Uniformity
Continuous emitting surface — zero dark spots, even in shallow profiles.
Flexibility
Flip-chip packaging with zero wire bonding for superior bending durability.
Color Quality
CRI > 90 with SDCM < 5 for consistent, museum-grade color accuracy.
Light Line
Profile Synergy
100% Dot-Free in Any Aluminum Profile
COB technology allows zero dark spots even inside thin or shallow aluminum channels (under 10mm depth). Pair with our Helian profile family for a complete, architect-ready linear system.
Min Depth9 mm
Light LineDot-Free
Dot Density0 / m
Recessed Aluminum Profiles
Trimless · Plaster-in · 38 series
Surface Mounted Profiles
Surface · 17×15 to 60×30mm
Corner & Suspended
45° corner · Pendant linear
Quality Assurance
Built for Long-Term Commercial & Architectural Reliability
Every reel is engineered for sustained brightness over a decade of daily use. Helian controls binning, PCB copper weight and encapsulation in-house — eliminating the variance that fails architectural inspections.
Q.02
Heavy-Duty PCB
2oz / 3oz rolled copper PCB for minimal voltage drop and superior heat dissipation. Optional 4oz for high-output 24W/m configurations.
Q.03
IP Rating Coverage
IP65 silicone-coated (PLUS series) for splash zones and wet locations, and IP20 (R20 series) for indoor dry applications.
Q.04
Certified & Insured
Fully compliant with CE, RoHS, UL and ETL standards. 3-year product warranty. LM-80 / TM-21 reports available for spec-grade projects.
OEM / ODM Services
OEM & ODM for Lighting Brands & Wholesalers
White-label our COB platform under your brand. From spec-sheet design to retail-ready packaging — Helian’s Shenzhen factory ships custom configurations to 40+ countries monthly.
3–5
Days · Custom Sample
500m
MOQ · Standard
CUSTOM · 01
Voltage & Power Tuning
12V / 24V / 48V rails with custom W/m profiles for OEM rails or low-voltage architecture systems.
12V · 24V · 48V DC
CUSTOM · 02
PCB Width & Cut Length
Tailored PCB widths from 3mm to 15mm. Custom cut lengths packed per reel for warehouse-direct drop-ship.
3–15 mm WIDTH
CUSTOM · 03
White-Label & Packaging
Private labeling, custom reel artwork, barcoding, retail-ready boxes, and drop-ship fulfillment to your customers.
PRIVATE LABEL · OEM BOX
CUSTOM · 04
Fast Sampling
Custom-spec samples delivered in 3–5 business days. Engineering review included at no charge above MOQ.
3–5 DAYS · GLOBALLY
Applications
Tailored for Modern Commercial & Residential Projects
Helian COB strips illuminate flagship hotels, retail flagships and architectural facades in 40+ countries. Browse a curated selection of recent installations.
ANSWER · TECHNICAL
COB (Chip-on-Board) packages flip-chips directly onto the PCB substrate, creating a dense, continuous light source with zero hot spots. Traditional SMD strips mount discrete LED packages with visible spacing, producing visible dots between individual chips.
ANSWER · INSTALLATION
While COB LEDs generate heat evenly, we strongly recommend pairing strips with aluminum profiles for any product rated above 10W/m. Aluminum channels maximize thermal dissipation, extend lumen maintenance, and provide a clean finished look.
ANSWER · QUALITY CONTROL
We enforce strict single-binning protocols with SDCM < 3 (3-Step MacAdam Ellipse) to ensure perfect color uniformity across every production lot. Repeat orders can be matched to the original batch’s bin code.
ANSWER · FIELD USE
Yes — designated cut points are clearly marked on the PCB (typically every 25mm or 50mm). We supply solderless quick-connectors and snap-on terminal blocks for tool-free installation. For IP-rated strips, our silicone end-caps restore full protection after cutting.
Leading manufacturer of premium LED aluminum profiles and linear systems. With 500+ original designs and global certifications, Helian provides professional, project-ready solutions for designers and architects worldwide.
© 2026 Shenzhen Helian Electronics Co., Ltd(HLLED)