Industry LED drive reliability with low main reasons are the following:
First, near heat sources.
LED luminous efficiency higher, but the energy flow through the LED is still only a small part of the energy can see the form of light radiation out most of the remaining energy in the form of heat consumption in the LED, the LED Blue 150W light source fever more serious. LED driver inside the lamp is usually placed near the LED light source in the environment temperature is only 20-30 ° C room temperature, drive around the ambient temperature can easily reach 50-60 ° C, the drive to ensure that such a high ambient temperature the reliability of the design (especially the efficiency index) has a big challenge.
Second, long-term work at full capacity.
The case of non-dimming LED 200W driver is close to full capacity in most of the switching power supply applications, such as computer power supply (adapter), communications, power, household appliances and other long-term average power is usually only rated power power fraction of the full power state, all loads are turned on only a select few within the time will appear.
Third, roads, squares and other outdoor lighting situations, vulnerable to damage to the outside world by lightning and other natural phenomena. All these will cause large-scale application of LED 400W semiconductor illumination ills of post-maintenance series.
The high reliability of the LED strip lights product quality, but also the urgent need to break the technical difficulties.