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SMD LED Strip Series

SMD LED Strip Light

Surface-mount device (SMD) LED strips are the most versatile and widely-used LED lighting solution for architectural and commercial projects. Available in 2835, 5050, 3528, 2216, and more chip types, with options for every voltage, color, IP rating ,and CRI requirement.

What is SMD LED Strip?

SMD stands for "Surface Mount Device" — a type of LED chip soldered directly onto a flexible PCB (printed circuit board). The numbers like 2835 and 5050 refer to the physical dimensions of the LED chip in millimeters.

SMD LED strips are the industry standard for professional lighting projects due to their high efficiency, wide color range, and proven reliability in demanding environments.

Available in DC 12V and DC 24V (24V recommended for long runs)
IP20 to IP68 waterproof ratings for indoor & outdoor use
CRI from Ra>80 to Ra>97 for color-critical applications
Single color, dual white (CCT tunable), RGB, RGBW, RGBCCT options
Custom PCB width, length, and LED density available

What Determines SMD LED Strip Quality?

Engineering Guide — Cost vs. Quality Breakdown

Not all SMD LED strips are created equal. The price difference between a premium and budget strip — often 2–3× — comes down to specific materials and manufacturing decisions. Understanding these differences helps you specify the right product for your project and avoid costly failures.

1. LED Chip & Binning

The LED chip alone accounts for 30–50% of total strip cost. This is where the biggest quality gap exists.

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Component	Premium	Budget	Impact
Chip brand	Epistar, San'an, Cree, Osram tier-1 dies	Off-brand, recycled, or reject-bin dies	20–40% lower lumen output; rapid lumen depreciation
Chip size	Full-size die (e.g. 28×35 mil for 2835)	Undersized die (e.g. 20×30 mil labeled as 2835)	Insufficient brightness; thermal overload; shortened lifespan
Phosphor	High-grade YAG / nitride phosphor	Low-cost phosphor blends	CRI drops to 65–70; color rendering unsuitable for hospitality
Binning	Tight BIN sorting (CCT ±100K, flux ±5%)	Wide BIN or mixed BIN	Visible color and brightness variation within the same reel
Encapsulant	Dow Corning / Shin-Etsu silicone	Cheap epoxy resin	Yellowing within 1–2 years; transmittance drops significantly

2. PCB (Flexible Circuit Board)

The PCB determines current-carrying capacity, heat dissipation, and mechanical reliability — all critical for long LED strip runs.

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Component	Premium	Budget	Impact
Copper thickness	2 oz or 3 oz copper	1 oz or even 0.5 oz	High voltage drop → tail end dims 20–30% on 5m runs
Board construction	Double-sided / high-quality FPC	Single-sided / cheap substrate	Poor heat dissipation; cracks when bent repeatedly
Board width	Full 8mm / 10mm / 12mm	Narrowed to 6mm or less	Reduced thermal area; trace current capacity insufficient
Surface finish	ENIG (gold) or OSP	HASL (wave solder)	Weaker solder joints; oxidation over time

3. Resistors & Passive Components

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Premium	Budget	Impact
1% precision resistors	5%+ tolerance resistors	LED current mismatch → uneven brightness along the strip
Full-rated power resistors	Under-rated resistors	Overheating → premature resistor failure

4. Waterproofing & Adhesive

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Premium	Budget	Impact
Platinum-cure silicone potting	PU glue or low-grade silicone	Yellowing, cracking, odor, waterproof failure within months
Genuine 3M VHB adhesive	Counterfeit 3M / generic adhesive	Strip falls off at high temperatures; adhesive residue
True IP65/IP67/IP68 tested	Labeled IP65 but untested	Water ingress → short circuit and corrosion

Key Takeaway

LED chip quality & binning — the single biggest cost driver (30–50% of BOM)
PCB copper thickness — directly affects voltage drop and heat management
Encapsulant & waterproofing materials — determines long-term reliability
Rule of thumb: if two strips with identical specs differ by more than 2× in price, the cheaper one has likely cut corners on all three areas above

SMD 2835 LED Strip

Parameter	Options / Specification
LED Chip	SMD 2835
LED Count	60 / 120 / 180 / 240 LEDs/m
Power	4.8W / 9.6W / 14.4W / 19.2W per meter
Voltage	DC 12V / DC 24V
PCB Width	5mm / 8mm / 10mm / 12mm
Color Options	Single Color / Dual White (CCT) / RGB / RGBW / RGBCCT
CRI	Ra>80 / Ra>90 / Ra>95
IP Rating	IP20 / IP54 / IP65 / IP67 / IP68
CCT Range	2200K – 6500K
Efficacy	Up to 180 lm/W
Beam Angle	120°
Max Run	5m (single) / 10m (dual feed, 24V)
Cutting Unit	25mm / 50mm / 100mm
PCB Color	White / Black / Yellow (custom)
Lifespan	50,000 hours (L70)
Operating Temp	-20°C to +45°C
Certification	CE, RoHS, UL (optional)

SMD 5050 LED Strip

High Power

The SMD 5050 features a larger 5.0x5.0mm chip housing multiple emitters per package, making it the go-to choice for RGB, RGBW, and high-brightness applications. With three individual light-emitting elements per chip, the 5050 delivers vivid colors and strong output for facade lighting, signage, and decorative projects.

Technical Specifications

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Parameter	Options / Specification
LED Chip	SMD 5050
LED Count	30 / 60 / 72 / 96 LEDs/m
Power	7.2W / 14.4W / 17.3W / 23W per meter
Voltage	DC 12V / DC 24V
PCB Width	10mm / 12mm / 15mm
Color Options	Single Color / RGB / RGBW / RGBCCT / Addressable
CRI	Ra>80 / Ra>90
IP Rating	IP20 / IP54 / IP65 / IP67 / IP68
CCT Range	2700K – 6500K
Efficacy	Up to 120 lm/W
Beam Angle	120°
Max Run	5m (12V) / 10m (24V dual feed)
Cutting Unit	50mm / 100mm
Lifespan	50,000 hours (L70)
Certification	CE, RoHS, UL (optional)

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SMD 3528 LED Strip

Cost Effective

The SMD 3528 is a compact 3.5x2.8mm single-emitter chip offering excellent cost performance. While lower output per chip than the 2835, its mature technology and competitive pricing make it suitable for budget-conscious projects requiring reliable quality.

Technical Specifications

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Parameter	Options / Specification
LED Chip	SMD 3528
LED Count	60 / 120 LEDs/m
Power	4.8W / 9.6W per meter
Voltage	DC 12V / DC 24V
PCB Width	8mm / 10mm
Color Options	Single Color / Dual White (CCT)
CRI	Ra>80 / Ra>90
IP Rating	IP20 / IP54 / IP65 / IP67
CCT Range	2700K – 6500K
Efficacy	Up to 100 lm/W
Beam Angle	120°
Max Run	5m (single feed)
Cutting Unit	25mm / 50mm
Lifespan	50,000 hours (L70)
Certification	CE, RoHS

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SMD 2216 LED Strip

Ultra Slim

The SMD 2216 is the smallest chip in our SMD lineup at just 2.2x1.6mm. Its ultra-compact size allows extremely high density (up to 360 LEDs/m) on narrow PCBs, creating smooth, dot-free light output approaching COB-level uniformity — at a lower cost than COB strips.

Technical Specifications

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Parameter	Options / Specification
LED Chip	SMD 2216
LED Count	120 / 180 / 240 / 300 / 360 LEDs/m
Power	9.6W / 14.4W / 19.2W / 24W / 28.8W per meter
Voltage	DC 24V
PCB Width	4mm / 5mm / 8mm / 10mm
Color Options	Single Color / Dual White (CCT)
CRI	Ra>90 / Ra>95 / Ra>97
IP Rating	IP20 / IP54 / IP65 / IP67
CCT Range	2200K – 6500K
Efficacy	Up to 160 lm/W
Beam Angle	120°
Max Run	5m (single feed)
Cutting Unit	16.7mm / 25mm
Lifespan	50,000 hours (L70)
Certification	CE, RoHS

Request Quote for 2216 →

SMD LED Strip Comparison

Quick reference to help you choose the right SMD chip for your project

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Parameter	2835	5050	3528	2216
Chip Size	2.8x3.5mm	5.0x5.0mm	3.5x2.8mm	2.2x1.6mm
Max Density	240 LEDs/m	96 LEDs/m	120 LEDs/m	360 LEDs/m
Max Power	19.2W/m	23W/m	9.6W/m	28.8W/m
Efficacy	180 lm/W	120 lm/W	100 lm/W	160 lm/W
Best CRI	Ra>95	Ra>90	Ra>90	Ra>97
RGB/RGBW	✓	✓ Best	✗	✗
Min PCB Width	5mm	10mm	8mm	4mm
Dot-Free	Medium	Low	Medium	High
Cost	$$	$$$	$	$$
Best For	All-round	RGB / Power	Budget	High CRI / Slim

How to Choose the Right SMD LED Strip

Selecting the right LED strip depends on your project requirements. Key factors:

Application — Indoor cove vs outdoor facade require different IP ratings and power
Color — Single white, tunable white, or RGB/RGBW determines chip choice
CRI — Hotels/retail need Ra>90+; commercial Ra>80 is sufficient
Space — Narrow channels need 4-5mm PCB (2216); standard use 8-12mm
Run length — Always use 24V for runs over 5 meters

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Hotel & Hospitality

Recommended: 2835 Ra>90 CCT tunable or 2216 Ra>95. IP54 for bathrooms, IP20 for interiors.

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Commercial & Retail

Recommended: 2835 120LEDs/m for general, 5050 RGB for accent. IP20 indoor, IP65 window displays.

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Outdoor & Landscape

Recommended: 5050 IP67/IP68 for bridges and facades. 24V dual-feed for long runs. See landscape case. RGBW for dynamic scenes.

How to Identify SMD LED Strip Types

Single Color vs. CCT vs. RGB vs. RGBW vs. Addressable

You can determine the type of any SMD LED strip by examining three things: the solder pad markings at the cut point, the number of traces on the PCB, and the LED arrangement on the board.

Quick Identification by Solder Pads

Single Color

+ −

2 pads / 2 traces. All LEDs are the same type — one color, uniform brightness. Simplest wiring.

Dual White (CCT Tunable)

V+ CW WW

3 pads / 3 traces. Two types of LEDs alternate — one warm white, one cool white. Mixing ratio adjusts color temperature.

RGB

V+ R G B

4 pads / 4 traces. Each LED (typically 5050) contains 3 dies — red, green, blue — visible inside the package.

RGBW

V+ R G B W

5 pads / 5 traces. RGB + dedicated white LED for better white output. Often one 5050 RGB + one 2835 white per group.

RGBCCT

V+ R G B CW WW

6 pads / 6 traces. Full color mixing + tunable white temperature. The most versatile but most complex wiring.

Addressable (Pixel)

V+ GND DIN

3 pads (sometimes 4 with backup data line). Despite fewer wires than RGB, each LED is independently controlled via IC serial data. Learn more

Visual Identification on the PCB

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What to Look For	What It Tells You
All LEDs look identical (same phosphor color)	Single color strip
LEDs alternate between two phosphor shades (one deeper yellow, one paler)	Dual white (CCT) strip
Inside a single 5050 LED, you can see 3 tiny colored squares (R/G/B)	RGB strip
A small black chip sits next to each LED (or group of LEDs)	Addressable strip (the black chip is the IC)
One resistor per group	Single color
Three resistors per group	RGB (one per color channel)
Few or no resistors	Addressable (IC handles current regulation internally)

Power-On Test

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Strip Type	Behavior When Powered Directly (No Controller)
Single color	Lights up immediately at full brightness
Dual white (CCT)	Only one channel lights up (either CW or WW depending on wiring)
RGB	Only one color lights up per channel; needs RGB controller for mixing
Addressable	Does NOT light up properly — may show random colors or stay dark. Requires data signal from controller

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Pro Tip: RGB strips have 4 wires but use analog control (entire strip changes color together). Addressable strips have only 3 wires but use digital IC control (each LED changes independently). More wires ≠ more capability — it's the IC that makes the difference.

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