SMD Lights With LED

Commonly used LEDs are divided into four types: in-line LED, TOPLED, piranha and high-power.
1) In-line LED:
The electrical connection is in the form of 2-pin in-line, which is a traditional low-end product. Because the package has a large thermal resistance and the chip is not easy to dissipate heat, the light effect decays quickly and the life is short. The advantage is that it is cheap and can be made into a small light-emitting angle.
2) TOPLED:
The electrical connection is in the form of 2, 4 or 6-pin patch, which is currently a commonly used light source. According to the size of the package shape, it is divided into 0805, 1206, 3528, 3535, 5050, 5060 and other specifications. The larger the package shape, the better the heat dissipation performance, the correspondingly larger the bearable power, and the more light output.
3) Piranha:
It is a 4-pin in-line package. The heat dissipation performance and reliability are better than ordinary 2-pin in-line package. It can withstand 50~70mA working current. It is a commonly used light source at present.
4) High-power LED:
LEDs designed and produced with large-size chips and enhanced hot channel technology are usually divided into specifications such as 0.5W\1W\3W\5W. A single 1WLED can withstand a working current of more than 300mA and output a luminous flux of more than 100 lumens. It is widely used In civil commercial lighting, traffic control, photography, night vision and other fields. The price of high-power LED is still relatively high. With the gradual maturity of the technology, it will hopefully replace the traditional lighting source completely and lead the world into an era of solid-state light source.