The main factor of the heat dissipation scheme is that the LED street lamp power supply bead can be used in a hot condition to greatly extend the life. Generally, the aluminum alloy is used, which is easier to dissipate heat. That is, the LED street light power bead is attached to the aluminum substrate, and the external heat dissipation area is maximized.
What is the most suitable working current for LED street light power supply?
For example, the rated working current of LED is 350 mAh. Some factories use it at the beginning and design 350 mA. In fact, the working heat is very serious at this current. After many comparison tests, it is ideal to design 320 mA. . Minimize heat and turn more electrical energy into visible light.
Why should LED street light power supply be constant?
The characteristics of the LED lighting material determine that it is greatly affected by the environment. For example, if the temperature changes, the current of the LED will increase, and the voltage will increase, and the current of the LED will also increase. Long-term operation beyond the rated current will greatly shorten the life of the LED lamp. The LED constant current is to ensure that the operating current value does not change when environmental factors such as temperature and voltage change.
