1) DIP LED (Light emitting diode): We have called LAMP LED, DIP LED also includes many types:
By colloidal shape: 3mm, 4mm, 5mm, 8mm, 10mm, 12mm, square, oval, and there are also some special sharps;
By color: red, orange, yellow, green yellow, green, blue green, blue, pink, UV, white, infrared, etc.
2) SMD LED (Surface mount device): surface mount diodes or surface mount components are its name; SMD also has a variety of types:
By size: there are 2020, 3528, 3535, 5050, 0603, 0805, 1210, 5060, 1010 and so on. Generally, SMD are diamond-shaped, so its name is based on the size L * W, most SMD use inches for units, only a few are used millimeters, such as 1608 (1.6 * 0.8mm) and so on. The color and colloid are the similar to DIP LED, only the shape of the product is different.
Low power LED advantages:
It is with small size, good for lighting design with small space; and even color; also good for radiate heating.
Low power LED disadvantages:
Low brightness and light efficiency; high light attenuation; usually one lamp need several LED, poor stability.
Usually used as back light source for TV, mobile phone, card light etc; and LED display also need thousands of lower power LED, some companies even used in LED lamps.