High-frequency electrodeless lamp, which is a kind of light source based on two well-known principles of fluorescent lamp gas discharge and high-frequency electromagnetic induction. Since there is no filament or electrode in the bulb, there is no inevitable component to limit the life of the light source. More than tens of thousands of hours. It mainly consists of three parts: high frequency generator, power coupler and glass bulb.
The principle of illumination is: after inputting a certain range of power supply voltage, the high frequency generator generates 2.65 MHz high frequency constant voltage to the power coupler, and the power coupler establishes a static strong magnetic field in the discharge space in the glass case, in the discharge space. The atmosphere is ionized and produces strong ultraviolet light, and the three primary color phosphors on the inner wall of the glass bulb are excited by strong ultraviolet light.
LEDs are semiconductor light emitting diodes.
The heart of the LED is a semiconductor wafer. One end of the wafer is attached to a holder, one end is the negative pole, and the other end is connected to the positive pole of the power supply, so that the entire wafer is encapsulated by epoxy resin. The semiconductor wafer consists of two parts, one part is a P-type semiconductor, in which the hole dominates, and the other end is an N-type semiconductor, which is mainly electrons here. But when the two semiconductors are connected, they form a "PN junction" between them. When a current is applied to the wafer through the wire, the electrons are pushed toward the P region. In the P region, electrons recombine with the holes, and then the energy is emitted in the form of photons. This is the principle of LED illumination. The wavelength of light determines the color of the light, which is determined by the formation of the PN junction material.
LED lamp is a high-brightness white LED light source with high luminous efficiency, low power consumption, long life, easy control, maintenance-free, safe and environmentally friendly. It is a new generation of solid cold light source with soft, colorful, colorful and low loss. Low energy consumption, green and environmental protection, suitable for roads, families, shopping malls, banks, hospitals, hotels, restaurants, and his various public places for long-term lighting. No flash DC, it has a good protection for the eyes, it is the best choice for table lamps and street lamps.
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