It is reported that the LED lamp size of the event is 3-4W, which can replace the 7W energy-saving lamp. This specification lamp has accounted for more than 40% of China's sales, and the cost price is 40-50 yuan.
According to calculations, the Central LED Lighting Trading Center will give 6,000 3W LED lights to Zhengzhou for free. Compared with 40W ordinary lighting, it can save at least 220,000 yuan in electricity costs per year. In the year-10 years, on average, according to the calculation of 6 years, it can save electricity costs of 1.32 million yuan and reduce carbon dioxide emissions by about 3.48 million kilograms.
LVLP series Linear Power Supplies are DC Power Supplies that achieve AC/DC conversion through power frequency transformers and transistor loop control. Compared with switching DC power supplies, linear mode power supplies have higher stability, higher accuracy, and lower output ripple. And the most important, because of the use of the power frequency AC/DC conversion principle, the linear power supply does not have high-frequency radiation interference, and is especially suitable for use in places with restrictions on EMC and EMI.
The LVLP series linear AC - DC power supplies have a wide range of output specifications, the output power ranges from 1KW to 400KW, and the output voltage can reach up to 800VDC, and accept customization.
The whole series DC linear power supply adopts industrial-grade metal chassis, pure copper AC/DC varnished transformer, high-reliability multi-transistor filter loop, ensuring the power supplies can run for a long time at full load with high stability, high accuracy, and ultra-low ripple electronic characteristics, equipped with a complete protection circuit, which can better ensure the reliability of the linear power supply itself and the safety of the customer's load.
The output voltage and current can be adjusted by the 10-turn potentiometer with scale and lock on the front, equipped with 4 1/2-digit high-resolution LED meters for output value reading, and RS communication interface can also be added for remote control and monitoring of linear power supplies.
This series of linear power supplies are mainly used for aging and testing of components such as capacitors, relays, and resistors, and can also be used for experimental testing of electronic components such as thermistors and motors. At present, many well-known capacitor manufacturers, resistor factories and other electronic component production units and scientific colleges and universities and other research and development units use this series of power supplies, and they have all been highly praised.
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Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com