You definitely like this 7 segment LED display!

You definitely like this 7 segment LED display!

Represents the light emitted per unit area, as when the light passes through, it will cause the residual sensation of the human eye to be consistent with the observed light sensation.

This product is a cylindrical metal core LED that emits light at night, providing excellent environmental protection. It is installed between single or multiple LED chips and has a relatively small volume.

There are various models of LED, including universal Hyb, LXD, f3, D4, i5, i7 series, etc.

SMD LED refers to surface mounted light emitting diodes, which can help improve production efficiency and apply to different facilities. It is a solid-state semiconductor device that can directly convert electricity into light. Its voltage is 19-32V, with the lowest red and yellow light voltages. The heart of the LED is a semiconductor chip, with one end attached to a bracket, one end being the negative electrode, and the other end connected to the positive electrode of the power supply, making the entire chip encapsulated in epoxy resin. A semiconductor chip consists of two parts, one is a P-type semiconductor in which holes dominate, and the other is an N-type semiconductor in which electrons dominate. But when these two semiconductors are connected, a P-N junction is formed between them. When an electric current passes through a wire and acts on this chip, electrons are pushed towards the P region, where they recombine with holes and emit energy in the form of photons. This is the principle of LED luminescence. The wavelength of light, also known as the color of light, is determined by the material that forms the P-N junction.

The color change of LED indicates that it does not have a uniform spectral color like a spotlight. It uses ultra-high brightness LED to detect whether filtering data will be generated. Its spectral color can be corrected by a black film. If you turn it off, its overall spectral color will not change. however

Applicability: Very small, each unit LED chip is 3-5mm square, so it can be prepared into various shapes of devices and is suitable for variable environments.

Color: The color can be changed by changing the current. The LED can easily adjust the Electronic band structure and band gap of the material through chemical modification to achieve red, yellow, green, blue and orange multi color luminescence. If the LED is red at low current, as the current increases, it can be orange yellow Z followed by green