LED lamps are widely used in all kinds of indoor and outdoor displays, including full-color, Tri Color and monochrome displays. The traffic lights mainly use ultra-high brightness red, green and yellow LEDs, because the use of LED lights is not only energy-saving, but also the traffic lights are gradually updated, and the promotion speed is fast.
The power factor is the cosine value of the phase difference between voltage and current. Because the current and voltage are wave charts, one is sine chart and the other is cosine chart; because the difference between the two wave charts is 1 / 4 cycle (i.e. 90 degrees), the PF value is formed. In order to improve the PF value, a correction circuit needs to be added to the power supply, so the power cost of high PF value is relatively higher. The PF value without pf correction circuit is generally around 0.6, and the PF value with PF circuit can reach about 0.9, or even higher. When the PF value is low, it will pollute the power grid of the whole power supply system. When the PF value is low, the utilization ratio of electric equipment to the power grid will be low. Therefore, the state has pf value requirements for some high-power electric equipment, generally speaking, there is no clear requirements for those below 50W. The national requirement is that PF value is greater than 0.6.
Led purification lamp of direct fluorescent lamp the chip of solid and durable LED lamp bead is completely encapsulated in epoxy resin. The small epoxy resin particles are very difficult to break, and the whole lamp body has no loose part; the chips inside are very difficult to break, and there is little thermal effect that may volatilize and fuse. These characteristics make it difficult to damage the LED cleaning lamp. Compared with ordinary light bulb and fluorescent lamp, LED is solid and durable.
The LED purification lamp of direct fluorescent lamp uses cold light source with less heat, and the dust-free workshop is a closed workshop. Generally, there are requirements for temperature control, even constant temperature and humidity in the workshop. If traditional purification lamps are used, the cold load in the workshop will be increased, resulting in high energy consumption in the workshop. Therefore, when the cost of LED purification lamp is constantly reduced, the dust-free vehicle It is necessary to use LED purification lamp in the room.
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