Before we go to the LED PCB, firstly, we should know there are a lot of kinds of LED light, basically, it can be divided into 2 categories,

Outdoor

1. Street lights: Street lights are mainly used for nighttime traffic lighting
2. Solar street light: Solar street light uses sunlight as an energy source, battery store the energy, LED light is the light source, it can charge at the daytime, however, consume the energy at night.
3. Garden lights: Most of the lights or lampshades of the garden lights are installed upward, and most of the tubes and lampstands are installed on the floor of the courtyard and courtyard
4. Auto vehicle lights: various LED lights installed on cars to ensure safe driving. There are two types of lights, which are front light, rear light, and signal lights.

Besides the lights above, there are other lights, we would like to list here, most of them used PCB to support the function, like a Buried lamp light, Tunnel light, strips lights, and Lawn lamp.etc.

Indoor

1. Home lighting
2. growing light
3. Shadowless Lamp

Aluminum-based LED PCB

Aluminum circuit boards are very popular in the LED lighting and high power electronics, there are some factors you may know about Aluminum PCB for LED. firstly, it is the thermal conductivity, this is a vital factor of how much the PCB can diffuse the heat from the electronic to the outer heatsink, however, there might no heatsink designed on it, the impact, in this case, is even more serious. Secondly, it is the color of the solder mask, generally, there are two colors that use more in the LED lighting, Black and white, the black color reflect no extra light. nevertheless, white color reflects most of the light. you might choose the right one for your design.

FR4 LED PCB

Basically, FR4 LED PCB is seen in indoor or outdoor screen, small size and big size, when you go into a mall you may see a super large screen, or when you walk in the street, you may see it too, at the back of the colorful screen, there are hundreds of thousands of PCB arrays, which support the LED tiny lamp. besides the large screen, the most common LED light just in your home, you may find most of the light now in the market are LED light, because it saves energy.

because of the special structure of the products and low heat diffusion, FR4 LED PCB can also be used in these products. but they are especially sensitive to the solder mask color, in other words, it is the light reflection.