What Is a 2835 LED Chip
June 11, 2026
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Source: lideda
A 2835 LED chip is one of the most widely used Surface-Mount Device (SMD) LEDs in the lighting industry. The name 2835 refers to the package dimensions:
2.8 mm × 3.5 mm
Surface-mounted on a PCB
Designed for high efficiency and excellent heat dissipation
Compared with older 3528 LEDs, 2835 LEDs provide higher brightness, better thermal performance, and lower energy consumption, making them a popular choice for LED strips, bulbs, panel lights, downlights, and commercial lighting fixtures.
What Does "2835" Mean?
The numbers indicate the LED package size:
| Model | Dimensions |
|---|---|
| 2835 | 2.8 × 3.5 mm |
| 3528 | 3.5 × 2.8 mm |
| 3030 | 3.0 × 3.0 mm |
| 5050 | 5.0 × 5.0 mm |
| 3535 | 3.5 × 3.5 mm |
Although similar in size to 3528 LEDs, the 2835 package features a larger light-emitting area and improved heat path.
Key Features of 2835 LEDs
High Efficiency
Modern 2835 LEDs can achieve:
100–180 lm/W (standard)
Up to 220 lm/W in premium lighting applications
This allows manufacturers to produce brighter fixtures while consuming less power.
Excellent Heat Dissipation
The thermal pad on the bottom of the package transfers heat efficiently to the PCB.
Benefits include:
Longer lifespan
Better lumen maintenance
Improved reliability
Higher operating current capability
Compact Size
The small package enables high-density LED arrangements in:
LED strips
Light bars
Linear fixtures
Panel lights
Long Lifetime
A high-quality 2835 LED typically provides:
30,000–50,000+ hours
Low lumen depreciation
Stable color consistency
Common Power Ratings
| Type | Voltage | Current | Power |
|---|---|---|---|
| Standard | 3V | 60mA | 0.2W |
| Mid-Power | 3V | 150mA | 0.5W |
| High-Power | 3V | 300mA | 1W |
| Dual-Chip | 6V | 150mA | 1W |
| High-Power Dual-Chip | 6V | 300mA | 2W |
Typical Colors and Wavelengths
| Color | Wavelength/CCT |
|---|---|
| Warm White | 2700K–3500K |
| Neutral White | 4000K–5000K |
| Cool White | 5700K–6500K |
| Red | 620–630nm |
| Deep Red | 660nm |
| Green | 520–535nm |
| Blue | 460–470nm |
| Amber | 590–595nm |
| Infrared | 730–940nm |
| UV | 365–405nm |
Common Applications
LED Strips
The most common application due to high efficiency and low cost.
LED Bulbs
Widely used in A19, PAR, and globe lamps.
Panel Lights
Provides uniform illumination with excellent efficacy.
Downlights
Ideal for residential and commercial lighting.
Linear Lighting
Used in offices, warehouses, and retail spaces.
Horticulture Lighting
Available in specialized wavelengths such as 660nm Deep Red and 730nm Far Red.
Advantages of 2835 LEDs
✅ High luminous efficacy
✅ Excellent thermal performance
✅ Compact package size
✅ Long operating life
✅ Low manufacturing cost
✅ Available in white, color, UV, and IR versions
2835 vs. 5050 LEDs
| Feature | 2835 | 5050 |
|---|---|---|
| Size | 2.8 × 3.5 mm | 5.0 × 5.0 mm |
| Efficiency | Higher | Lower |
| Heat Dissipation | Better | Moderate |
| Brightness per LED | Medium–High | High |
| RGB Capability | Limited | Excellent |
| Typical Applications | General lighting | RGB and decorative lighting |
The 2835 LED chip is a high-efficiency SMD LED package measuring 2.8 × 3.5 mm. Thanks to its excellent thermal design, high lumen output, long lifespan, and low cost, it has become one of the most widely used LED packages in modern lighting products, including LED strips, bulbs, panel lights, downlights, commercial fixtures, and horticulture lighting systems. It is often considered the industry standard for efficient general lighting applications.
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