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The factors affecting the price of explosion-proof LED lights are as follows
First let the teacher introduce what is the LED explosion-proof lamp : LED explosion-proof lamp uses the characteristics of low heat generation of LED to achieve explosion-proof, and the service life of LED light source is also very long. The battery maintains a constant brightness at the end of full charge and discharge, and a radiator is provided on the lamp housing to achieve effective heat dissipation of the LED module and ensure the stability of use. It is suitable for various industrial lighting such as coal mines, oil, railways, and flood control. With the continuous expansion of the LED explosion-proof lamp market, more and more manufacturers began to influx, and the prices became more diversified.
1. LED packaging technology. This requires us to find a reliable manufacturer.
Second, the design of the power supply. Because the discreteness of LEDs is very strong, the voltage drop, wavelength, light color, and height are very different. Only LEDs with the same indicators above can be used in parallel. In contrast, the current reduced by voltage is very large, and the current with high voltage drop is very small. As a result, the light color and height are uneven, and the life of the large current is shortened.
3. Working power of LED. According to the "rules" of the electronics industry, only 60% of the limit value can be used in actual production and application to ensure normal performance and life. Nowadays, many advertising manufacturers make rigid LEDs to increase the LED current in pursuit of brightness. This is tantamount to a kind of exhaustion and killing chickens and eggs. Therefore, in pursuit of maximum brightness, a safe current is guaranteed.
4. About the prevention of static electricity. The LED base is an anti-static PVC slot.
5. LED power supply. In order to save transformers, many shops often use 220 volts plus resistors in series with LEDs. The first is that there is no voltage regulation and the current is constant. The PN junction of the second LED is connected to a sine wave and a negative sine wave, so there are 110 in AC 220. The negative half wave of volts is wasted invisibly and a lamp and a resistor are wasted part of the power. This will donate the service life of the LED and increase the power consumption. The second is the iron core transformer, which is stepped down and rectified into DC. It is bulky and unregulated, but it has good reliability. There is also a large number of switching power supplies that are used now, with high efficiency and moderate price, but the quality is easy to adulterate. Sometimes the LED is burned.