The driver power supply manufacturer said that high reliability is especially important for the driver power supply of LED street lamps. The driver power supply is installed at high altitude, and the waterproof aluminum shell driver power supply is used. If the quality is good, it is not easy to break, which reduces the number of repairs. High-efficiency LEDs are energy-saving products, and the driver power supply is more efficient. It is especially important for the structure of installing the power supply in the lamp. Because the luminous efficiency of LEDs decreases with the increase of LED temperature, the heat dissipation of LEDs is very important. The driver power supply has high power efficiency, low power loss, and low heat generated in the lamp tube, which reduces the temperature rise of the lamp tube. It is conducive to delaying the light decay of LEDs.

Driver power supply manufacturers say that high power factor power factor is the power grid's requirement for load. Generally, there is no mandatory indicator for appliances below 70 watts. Although a single appliance with low power has a low power factor and has little impact on the power grid, everyone turns on the lights at night, and the same load is too concentrated, which will cause serious pollution to the power grid. For 30 watt to 40 watt driver power supplies, it is said that there may be certain indicator requirements for power factor in the near future. There are two common driving methods: one is multiple constant current sources and one constant voltage source, and each constant current source supplies power to each LED separately. This combination is flexible, and a failure of a driver power supply will not affect the work of other accessories, but the cost will be slightly higher. The other is a direct constant current power supply, and the LEDs run in series or in parallel. Its advantage is low cost, but poor flexibility, and it is also necessary to solve the problem that a certain LED failure will affect the operation of other LEDs. These two forms coexisted for a while. The multi-channel constant current output power supply method will be better in cost and performance. Perhaps it is the mainstream direction in the future.

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