How to judge the quality of LED headlight bulbs?
There is no doubt that the thermal conductivity of metals is much greater than that of plastics. LED lights using high-grade aluminum are better in terms of heat dissipation efficiency of the bulb, overall stability and stunt sense of the bulb. Therefore, be sure to understand the materials used in LED lights before purchasing..
- LED Intermediate SubstrateThe middle layer of the LED bulb is called the bulb substrate, which is where the LED lamp beads are embedded. The heat generated by the operation of the LED is first transferred to the base plate of the bulb and then to the rest of the lamp body. Therefore, the better the thermal conductivity of the substrate of the LED lamp and the faster the conduction speed, the better the heat dissipation performance of the LED. Under the same conditions, the thermal conductivity of the copper substrate is more than twice that of the aluminum substrate. Therefore, the service life of lamp beads using copper substrates is generally higher than that of LED lights using aluminum substrates.
- LED Light FanLED bulbs with fans are definitely better at dissipating heat than those without fans. Of course, whether an LED light needs a fan also depends on the power required by the LED. The higher the power, the more the auto light needs a fan to dissipate heat. The higher the fan speed, the better the heat dissipation efficiency of the bulb LED, and the lifespan of the bulb will be greatly extended. At the same time, pay attention to whether the design of the lamp body wrapping the fan is more conducive to the entry and exit of air. The fan part of the LED lamp is best to use a fully hollow lamp body design, rather than the exposed fan blades at the bottom. Because the hollow design of the fan is more conducive to the exchange of cold and hot air, which is conducive to heat dissipation.
We all know that the driver is the heart of the LED light, without it, the LED light cannot be used with electricity. Whether the automotive lamp is driven internally or externally, the driver contains many electronic components such as resistors, capacitors, control IC, etc. When the car light starts to work, the driving part will also heat up, and the temperature can reach about 80 degrees. This means that our bulb cooling system not only has to handle the heat generated by the lamp beads, but also the heat from the driver. Therefore, under the same bulb chip, lamp structure and heat dissipation system, the external drive is more conducive to the overall heat dissipation of the bulb and the lasting stability of the vehicle lights.
- Internal or External Drives
Novsight N52 Series LED Headlight Bulb
This LED light uses an 80MIL LED CSP chip, which can provide 20,000 lumens of output. The brightness is 6 times that of ordinary halogen lamps. The perfect beam pattern can be focused on the driver's side without causing dizziness to oncoming vehicles, making driving safer. The fuselage as a whole is made of 6063 aircraft aluminum, which has a better heat dissipation effect. The copper substrate is used in the middle to quickly guide the heat generated by the lamp beads, and the thermal conductivity is stronger. The fan part adopts a hollow design, which is conducive to air exchange. The fan is a turbo fan with a speed of 12,000RPM/MIN. The drive of the bulb is external, which is beneficial to the heat dissipation of the LED lamp. Click here to learn more.