After the
LED Solar Road Studs are turned on, the long-term use of the
LED Solar Road Studs will gradually increase the internal temperature of the
LED Solar Road Studs. If the heat generated cannot be released in time, it will have a great impact on the life of the street lamps. Seriously Damage to
LED Solar Road Studs and Solar Road Studs.
LED Solar Road Studs are like traditional light sources. During operation, semiconductor light-emitting diodes (LEDs) also generate heat, the amount of which depends on the luminous efficiency. The radiative recombination of electrons and holes produces electroluminescence due to an energy effect, and the light radiated near the PN junction also needs to pass through the semiconductor medium and packaging medium of the wafer itself to reach the outside (air). The overall current injection efficiency, radiant luminescence quantum efficiency, and external light extraction efficiency of the wafer, etc., in the end, only about 30-40% of the input electrical energy is converted into light energy, and the remaining 60-70% of the energy is mainly converted into heat energy, because the lattice vibration is caused by produced without radiative recombination.
Whether the
LED Solar Road Studs work stably or not and the quality is related to the brightness of the lamp body itself, the high-brightness LEDs of the
LED Solar Road Studs on the market often use natural insert radiators to emit light, and the effect is not ideal.
The main structure of
LED Solar Road Studs using LED light source includes: LED Solar Road Studs lamps, lamp structure, driver, lens and other parts. Therefore,
LED Solar Road Studs is also an important component. If the LED Solar Road Studs are not used properly, their lifespan will also be affected. Thermal management is a major concern for high power applications with
LED Solar Road Studs. In this case, p-type doping is limited by the predominant solubility of Mg, and when the startup kinetic energy is large, it is especially prone to heat generation, which must travel through the entire structure to be dissipated on the heat sink;
LED Solar Road Studs The startup kinetic energy and heat sink of the device are mainly conducted through thermal conduction; the extremely low thermal conductivity of the substrate material will lead to an increase in the thermal resistance of the device and a serious self-heating effect, which affects the performance and reliability of the device.
The effect of thermal energy on high-gloss
LED Solar Road Studs. The heat source is concentrated in a very small wafer, and the wafer temperature increases, resulting in uneven distribution of thermal stress on the wafer, and the wafer luminous efficiency and phosphor lasing efficiency decrease. When the wafer temperature exceeds a certain value, the wafer failure rate changes exponentially.
