Several factors affecting the life of explosion-proof lamps

Several factors affect the life of LED explosion-proof lamps:

1. Mold quality is the primary condition that determines the service life of LED explosion-proof lamps. In the manufacturing process of light-emitting diode chips, pollution from other impurity ions, lattice defects and other processes will affect its service life. Therefore, the use of high-quality light-emitting diode chips is the primary condition.

2. Whether the post-processing package is reasonable will affect the life of the LED. Whether the post-processing package is reasonable will affect the life of the LED. At present, several major companies in the world such as Cree, Lumilends, Japan Asia and other ** LED packaging have patent protection. The post-processing packaging requirements of these companies are relatively high, thereby ensuring the life of the light-emitting diodes. However, most companies have many imitations of light-emitting diode post-processing packaging, which is acceptable from the appearance point of view, but its process structure and process quality are poor, which seriously affects the life of the light-emitting diode.

3. Lamp design is a key issue that affects the life of LED explosion-proof lamps. In addition to meeting other indicators of the lamp, a key issue is the radiant heat generated when the LED is lit. Using Kerry and other companies' original high-quality LED products on different lamps, the life span of LEDs can be several times or even dozens of times. For example, the integrated light source lamps (single 30 watts, 50 watts, 100 watts) currently on the market have poor heat dissipation at the contact portion between the light source and the heat dissipation channel. Therefore, some products have a light attenuation of more than 50% after 1-3 months of light exposure. Because there is no reasonable heat dissipation mechanism after using a small power tube of about 0.07 watts, some products have very fast light attenuation. These products have low technical content, low cost and short service life.

4. The power supply of the lamp is very important to the life of the LED explosion-proof lamp. Whether the lamp is used reasonably will also affect its service life. Because the light emitting diode is a current driving device, if the power supply current fluctuates greatly, or if the frequency of the power spike pulse is high, it will affect the life of the light emitting diode light source. The life of the power supply itself mainly depends on whether the power supply design is reasonable. Under the premise of reasonable power supply design, the life of the power supply depends on the life of the components.

5. Impact of ambient temperature on the life of LED explosion-proof lamps At present, the short life of LED lamps is mainly due to the short life of the power supply, and the short life of the power is due to the short life of the electrolytic capacitors. The service life index of electrolytic capacitors also has a feature: it must indicate the service life at how many degrees of working environment temperature, which is usually specified as the service life at an ambient temperature of 105 ° C. The lower the ambient temperature, the longer the life of the capacitor. Even the most common electrolytic capacitor has a service life of 1000 hours and can reach 64,000 hours at an ambient temperature of 45 ° C, which is enough for ordinary light-emitting diode lamps with a nominal life of 50,000 hours.