In-line types include 2mm, 3mm, 4mm, 5mm, 8mm, 10m single-color, two-color, and even three-color full-color LEDs. Many in turn include round, square, oval, straw hat, and piranha.

SMD types include 0201, 0402, 0603, 0805, 1206, 3528, 2016, 2835, 3014, 4014, 3030, 3535, 5050, 5630, 5730, 7020 and 7030, etc.

High power includes imitation lumen 1W, 3W, 5W LEDs and integrated LEDs 10W, 20W, 30W, 50W, 60W, 70W, 80W and 100W, 200W. These lamp beads are the models that are used more in our daily life.

The lamp bead is made of semiconductor material, and its applicability is very small, because the LED chip of each unit is a square of 3 to 5 cm, so it can be made into various shapes.

LED lamp beads use low-voltage power supply, and the power supply voltage is between 2-4V, which varies according to different products, so it is a safer power supply than high-voltage power supply, especially suitable for public places.

The LED lamp bead can change color by changing the current, and the light-emitting diode can easily adjust the energy band structure and band gap of the material by chemical modification method, so as to realize the multi-color light emission of red, yellow, green, blue and orange.