What is a 2W SMD LED Light PCB?
A 2W SMD LED light PCB is a type of circuit board designed to incorporate SMD LEDs mounted directly onto the board. The 2W designation refers to the thermal conductivity of the dielectric layer of the PCB, which typically uses aluminum to provide superior heat dissipation. The high thermal conductivity ensures that the LEDs operate efficiently even under high power, as it minimizes heat buildup鈥攁n essential factor for maintaining the longevity and performance of the LEDs.
This type of PCB is highly effective for applications where efficient cooling and energy-saving properties are needed, such as downlights, track lighting, spotlights, and even automotive lighting. The aluminum base serves a dual purpose: providing robust mechanical support and facilitating effective heat management.
What is Thermal Conductivity of a LED light PCB?
Thermal conductivity refers to the ability of a material to conduct heat. It is defined as the amount of heat transferred through a 1-meter thick material with a temperature difference of 1 degree (K or 掳C) across its surfaces under steady-state conditions. This heat transfer per second through a 1-square meter area is measured in watts per meter per degree (W/(m路K)), where K can be replaced by 掳C. Thermal conductivity applies specifically to heat transfer by conduction. When other forms of heat transfer, such as radiation, convection, and mass transfer, are present, the combined heat transfer relationship is often referred to as theapparent thermal conductivity, effective thermal conductivity, or thermal transmissivity of the material.
In addition, thermal conductivity is defined for homogeneous materials. In practice, materials may be porous, layered, have multiple structures, or be anisotropic, and the thermal conductivity of such materials represents an overall composite thermal performance, often referred to as the average thermal conductivity.
The thermal conductivity of an LED light PCB is typically determined by the material used in the dielectric layer of the PCB. Common materials for LED PCBs include aluminum and copper, which have high thermal conductivity, allowing them to efficiently dissipate heat.
Thermal Conductivity and its Impact on LED Light PCB
For LED light PCBs, effective heat dissipation is critical for maintaining brightness, efficiency, and longevity. If the thermal conductivity is insufficient, the LED may overheat, causing:
- Reduced light output: Overheating can cause LEDs to dim or malfunction.
- Shortened lifespan: Excessive heat can lead to the degradation of LED components, reducing their operational life.
- Instability: Poor heat management can lead to thermal runaway, where the heat generated causes even more heat to accumulate, damaging the LED permanently.
Aluminum 2W SMD LED Light PCB Specification
| Product Name | 2W SMD LED Light PCB |
| Base Material | Aluminum |
| Layer Count | 2L (Double Sided) |
| Board Thickness | 1.6mm +/-10% |
| Dielectric Thermal Conductivity | 2W |
| Copper Thickness | 1OZ |
| Solder Mask | Black |
| Silkscreen | White |
| Surface Finishing | HASL Lead-Free |
| Hole Tolerance | PTH: 卤0.075; NTPH: 卤0.05 |
| Shape | Square |
| Assembly | NO |
| Ship by Panel or Single Piece | Single Pieces |
Benefits of 2W LED Light PCB
1. Efficient Heat Dissipation
One of the standout features of the 2W LED light PCB is its 2W thermal conductivity, which allows for superior heat dissipation. So that the aluminum base can transfer heat away from the LED, ensuring that the light source remains cool. By keeping the LED cool, the PCB extends the overall lifespan of the lighting system.
2. Energy Efficiency
While the 2W LED light PCB offers excellent heat management, it also delivers superior energy efficiency. With reduced power consumption compared to traditional lighting options, it offers a bright light output while keeping energy costs low.
3. Compact and Lightweight Design
The aluminum light PCB is typically smaller and lighter than many other types of lighting solutions, such as copper core LED PCB or sinkpad LED PCB. Whether it’s downlights, track lights, or under-cabinet lighting, the small form factor of the 2W LED PCB allows for easy installation in tight spaces.
4. Long Lifespan
Thanks to the efficient thermal conductivity and the energy-efficient design, 2W LED light PCBs have a much longer lifespan compared to traditional lighting options. While conventional bulbs often burn out or degrade quickly, LEDs can last for tens of thousands of hours.
5. Environmentally Friendly
Aluminum LEDs are known for being environmentally friendly. These lights consume far less energy than traditional incandescent or halogen bulbs, resulting in lower carbon emissions. Additionally, LEDs contain no harmful chemicals like mercury, which makes them easier to recycle compared to other lighting technologies.
6. High Color Rendering Index (CRI)
Many 2W LED light PCBs offer a high Color Rendering Index (CRI), which means they provide better color accuracy in the light they produce. This is particularly important in areas where accurate color display is crucial, such as in retail settings, art galleries, or photography studios.
1W vs. 2W vs. 3W LED PCB
When designing a LED PCB, it is important to choose a suitable thermal conductivity to ensure an effective heating dissipation. In Best Technology, we offer 1W, 2W and 3W LED PCB. Though the higher thermal conductivity means better heat dissipation, but not higher is best for your devices. Let鈥檚 see what are the differences between them and how to choose them.
| Feature | 1W LED PCB | 2W LED PCB | 3W LED PCB |
| Thermal Conductivity | 1.0 W/m路K | 2.0 W/m路K | 3.0 W/m路K |
| Heat Dissipation | Good heat dissipation, suitable for low-power LEDs | Better heat dissipation than 1W, suitable for medium-power LEDs | Excellent heat dissipation, suitable for high-power LEDs |
| Power Consumption | Typically around 0.5W to 1W | Typically around 1W to 2W | Typically around 2W to 3W |
| Applications | Small indicators, backlighting, decorative lighting | Indoor lighting, track lights, downlights, floodlights | High-bay lights, street lights, industrial lighting |
| Performance | Effective for low-power applications with minimal heat | Ideal for general-purpose lighting with moderate heat output | High performance for intense lighting requiring significant heat management |
| Heat Management | Requires minimal heat management | Moderate heat management for general lighting | Advanced heat management to handle higher power levels |
| Lifespan | Long lifespan in low-power settings | Extended lifespan with balanced heat dissipation | Maximized lifespan with superior thermal conductivity |
Trusted Aluminum LED Light PCB Manufacturer – Best Technology
When sourcing aluminum LED light PCBs, do not miss out Best Technology! We are a China based metal core PCB manufacturer, who has engaging in PCB manufacturing for over 18 years. We specialize in a wide range of PCB types, including:
- FR-4 PCB
- High TG FR-4 PCB
- Heavy Copper PCB
- Impedance Control PCB
- High-Frequency PCB
- Flexible PCB
- Rigid-Flex PCB
- HDI PCB
- Aluminum PCB
- Copper-Based PCB
- Ceramic PCB
And as a one-stop service to customers, we offer PCB assembly service as well, such as:
- SMT (Surface-Mount Technology)
- DIP (Dual In-line Package)
- Reflow Soldering
- Wave Soldering
- Hand Soldering
- Mixed Assembly Technologies
- Cable Assembly
- PCBA Testing
- Box Building Assembly
Detail Aluminum/Copper LED PCB Manufacturing Capabilities
| Items | Capabilities |
| Base Material | Aluminum / Copper / Stainless steel |
| Base Material Thickness (exclude CU) | 0.30mm / 0.40mm / 0.50mm / 0.60mm/ 0.80mm /1.0 mm/ 1.2 mm / 1.6mm / 2.0 mm / 2.4mm / 3.0mm |
| Thermal Conductivity | 1W / 1.5W / 2.0W / 3.0W |
| Solder Mask Color Option | White, Black, Green, Blue, Yellow, Red |
| Layer | 1-10 layers |
| Max Board Dimension | 24*64″(610*1625mm) |
| Min Board Thickness | 0.6mm |
| Max Board Thickness | 4.0mm |
| Conductor Thickness | 0.5oz-10oz |
| Min Line Width/Space | 4/4mil (0.10/0.10mm) |
| Tg Value | 130 / 150 |
| Min Solder Mask Bridge | 8mil (0.20mm) |
| Min Hole Diameter | 10mil (0.25mm) |
| Min Punch Hole Dia | 0.12″ (3.0mm) |
| Min Hole Spacing | 16mil (0.4mm) |
| Min PAD Ring (Single) | 3mil (0.075mm) |
| PTH Wall Thickness | Normal: 0.59mil (15um); HDI: 0.48mil (12um) |
| Min Solder PAD Dia | 14mil (0.35mm) |
| Min BAG PAD Margin | 5mil (0.125mm) |
| PTH/NPTH Dia Tolerance | PTH: 卤3 mil (0.075mm); NPTH: 卤2mil (0.05mm) |
| Hole Position Deviation | 卤3mil (0.075mm) |
| Outline Tolerance | CNC: 卤6 mil (0.15mm); Die Punch: 卤6 mil (0.1mm) |
| Max Aspect Ratio | 10:1 |
| Surface Treatment | ENIG, ENEPIG, OSP, HASL (LF) |
| Halogen Free | Yes(optional) |
| ROHS | Yes |
| Flammability | 94V-0 |
| Dielectric Strength | >1.5Kv (L/S >1.5mm); >3.0Kv (L/S >3.0mm) |
| Wrap & Twist | 鈮 0.75% |
| Thermal Stress | 3 x 10 Sec @ 280 鈩 |
LED PCB Prototype Lead Time
| Prototype(<1m虏) | Layers | Normal Service | Expedited Service |
| Metal Core PCB | 1 Layer | 1 – 1.5 weeks | 48 hours |
| 2 Layers | 2.5 – 3 weeks | 168 hours | |
| 4 Layers | 3 – 4 weeks | 1.5 weeks | |
| 6 Layers | 4 – 5 weeks | 2 weeks | |
| 8 Layers | 5 – 6 weeks | TBD | |
| 10 Layers | 6 – 7 weeks | TBD |
LED PCB Mass Production Lead Time
| Mass Production | Layers | Normal Service | Expedited Service |
| Metal Core PCB | 1 Layer | 2 – 2.5 weeks | 1 week |
| 2 Layers | 3 – 4 weeks | 1.5 – 2 weeks | |
| 4 Layers | 4 – 5 weeks | 2 weeks | |
| 6 Layers | 5 – 6 weeks | 2.5 weeks | |
| 8 Layers | 6 – 7 weeks | 3 – 4 weeks | |
| 10 Layers | 7 – 8 weeks | TBD |
FAQs
Q1. Can you source components for my PCB?
A: Yes, we can assist in sourcing components for your PCB. We work with original manufacturers and reliable suppliers to ensure that the components meet your quality standards. We also offer BOM checking and full supply chain management to ensure timely and accurate delivery.
Q2. Can you help with PCB design and development?
A: Our team of experienced engineers can assist with both hardware and software development, including schematic design, PCB layout, and software development for embedded systems. We also offer PCBA cloning services, helping you replicate and improve existing designs.
Q3. What information do I need to get a PCB quotation?
A: Gerber file or DXF file along with your specific technical requirements, including: PCB material, thickness, copper surface specifications, solder mask and silkscreen color and any other relevant details you may have. PCB requires assembly need pick and place file and BOM file.
Q4: Are my files safe? NDA available?
A: Yes, your files are kept secure and confidential throughout the entire process. We take the protection of your intellectual property seriously and never share any customer documents with third parties. If you want to get more security, we can sign NDA file with you.
Q5. What is your minimum order quantity (MOQ)?
A: We do not have a minimum order quantity (no MOQ). Whether it’s 1pcs or 100K pcs, we are equipped to handle orders of any size flexibly.
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