With the development of lighting technology, lamps are becoming more and more practical and energy-saving. Initially, incandescent bulbs were replaced by CFLS, which are now being replaced by leds. I believe we are no strangers to LED lights, so how much do you know about LED beads? Next, the Xiaobian of the in-line LED lamp bead manufacturer will give you a brief introduction:

LED lamp bead model can be divided into direct plug, patch, according to the power can be divided into high power, medium power and small power, the voltage of lamp bead is relatively consistent, the size is about 3 volts, the current from tens of milliampere to a few amperes

For LED beads, their brightness is different, the price is different; Anti - static ability of LED beads, long life, high price. In general, when the antistatic ability of LED beads is greater than 700 V, the decoration of LED lights can be used.

The LED bead is a single light emitter, if there is a reverse current, it is called leakage. The higher the leakage current of LED lamp, the shorter the life and the lower the price.

LED beads have simple structure and beautiful appearance. LED lights for different purposes emit light at different angles. At this point, it meets the different needs of most consumers. Of course, if it is a special light Angle, the price will be higher.

Direct insertion LED beads are widely used in lighting, large LED display, decoration, computer, telephone, advertising, urban glory engineering and many other fields.

LED(Light Emitting Diode) is a solid-state semiconductor device that can convert electric energy into visible light, which can directly convert electricity into light. The heart of the LED is a semiconductor wafer, one end of which is attached to a holder with a negative terminal and the other end connected to the positive terminal of the power supply, so that the entire wafer is encapsulated in epoxy resin.

A semiconductor chip consists of two parts, a P-type semiconductor, in which holes dominate, and an N-type semiconductor, in which electrons dominate. But when these two semiconductors are connected, they form a P-N junction between them. When an electric current is applied to the chip through a wire, electrons are pushed into the P-region, where they recombine with holes and emit energy in the form of photons, which is how leds glow. And the wavelength of light, the color of light, is determined by the material that forms the P-N junction.

At first, LED was used as an indicator light source for instruments and meters. Later, LED of various light colors were widely used in traffic lights and large-area display screens, resulting in good economic and social benefits. The 12-inch red traffic light, for example, is originally a 140-watt incandescent light bulb with a long life and low optical performance that produces 2, 000 lumens of white light. After passing through the red filter, 90% of the light is lost, leaving only 200 lumens of red light. In its new design, Lumileds uses 18 red leds, which consume 14 watts of power, including circuit losses, to produce the same light. The car signal lamp is also an important field of LED light source application.