Blue LED SMD 3W with Heatsink
Available in stock
Minimum order quantity: 2 pcs
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 5,99 lei | — |
| 3–4 pcs | 5,69 lei | 5% (−0,30 lei/unit) |
| 5–10 pcs | 5,39 lei | 10% (−0,60 lei/unit) |
| 11+ pcs | 5,09 lei | 15% (−0,90 lei/unit) |
3W Blue LED Chip on Aluminum Heatsink
The 3W SMD blue LED chip is mounted directly on an aluminum star-shaped support, designed to efficiently dissipate heat and extend the diode's lifespan. It is suitable for DIY lighting projects, custom LED panels, aquariums, decorative lighting, or replacing faulty components in existing light fixtures. Its compact format and clear polarity markings facilitate quick integration into any circuit.
What you get with this product
- Intense blue light with a flux between 30 and 40 nm — suitable for decorative applications, aquariums, or specific visual effects
- The integrated star-shaped aluminum heatsink eliminates the need for a separate heatsink, reducing costs and assembly complexity
- Plus and minus polarity markings printed on the PCB prevent incorrect connection and simplify wiring
- Compact dimensions of the 3W blue LED chip — heatsink diameter 20 mm, easy to integrate into small spaces
- Available in multiple quantities, each chip dimensionally and electrically identical, ideal for LED panels or arrays
- Actual consumption of 3W at 500-700 mA current — efficient ratio between brightness and power consumption
How it works and how to install it
The 3W SMD blue LED chip is powered directly by a constant current source regulated between 500 and 700 mA, at a voltage of 3.2-3.6V. Connection is made based on the plus and minus markings on the star-shaped heatsink, without additional components if you use an appropriate LED driver. For stable operation at maximum power, it is recommended to apply thermal paste between the heatsink and the surface you are mounting it on, although the integrated heatsink already provides sufficient basic cooling for normal use.
Frequently Asked Questions
Do I need a special driver for this 3W LED chip?
Yes, a constant current source of 500-700 mA at 3.2-3.6V is required. Do not connect the chip directly to a voltage source without current limiting, as it can be damaged quickly.
Do I need to mount an additional heatsink or is the one on the PCB sufficient?
The integrated aluminum heatsink provides adequate basic cooling for intermittent use or in well-ventilated areas. For continuous operation at maximum current of 700 mA, it is recommended to mount it on a metal surface or apply thermal paste.
What are the dimensions of the LED chip's star-shaped heatsink?
The outer diameter of the star-shaped heatsink is 20 mm, and the dimensions of the LED chip itself are 7 x 3 mm, according to the product's technical data.
Technical Specifications
| Light color | Blue |
| Power | 3W |
| Supply voltage | 3.2V - 3.6V |
| Operating current | 500 - 700 mA |
| Luminous flux | 30 - 40 nm |
| LED chip size | 7 x 3 mm |
| Heatsink diameter | 20 mm |
| Heatsink material | Star-shaped aluminum |
| Mounting type | SMD on PCB with integrated heatsink |
| SKU | Q-20C053 |
Warranty and Support
The product benefits from a 2-year warranty in accordance with current Romanian legislation. Returns are accepted within 30 days of receiving the package, with no obligation to provide a justification. Delivery is carried out quickly by courier throughout Romania.
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