With the rise of LED lighting power, ceramic materials are used by more and more manufacturers in the LED field for their superior performance. For example, sapphire, silicon carbide, and zinc oxide are ceramic materials, and phosphors are ceramic materials. There is also a ceramic substrate for heat dissipation.
The heat dissipation of power LEDs has always been a bottleneck. Because most of the LED electrical energy conversion is converted to thermal energy, the device lifetime is drastically attenuated. The high-power LEDs and LED lamps currently used basically solder the LED light source on the aluminum substrate, and the aluminum substrate is bonded to the aluminum heat sink through the thermal conductive adhesive. Because the thermal resistance of the aluminum substrate and the thermal conductive adhesive is large, the light effect and the life of the LED are affected; and the ceramic film forming technology does not need the aluminum substrate and the thermal conductive adhesive, which completely solves the problems of large thermal resistance and poor heat dissipation. The luminaire thus produced has a small thermal resistance and a small temperature rise, which greatly extends the life of the LED luminaire and saves costs.
Planck is an incubator of the National University Science Park of Zhejiang University. The ceramic film-forming technology, ceramic film-forming production line and ceramic film-forming LED lamps are leading domestically. There are more than ten related patents, including three invention patents. .
Ceramic film forming technology has the characteristics of working under high voltage, high temperature, high frequency and high power. It is widely used in the heat dissipation of LED and other power devices, high pressure resistance requirements and microwave environment.
The person in charge of the Planck exhibition said that the ceramic lamp has the characteristics of high temperature resistance and high pressure resistance, and the ceramic-free aluminum substrate, the factory price of 7W is 15 yuan.
USB 2.0 3.0 Flash Pen Drives FLASH Memory Pendrive USB Stick
1.What is the write speed ?
our USB 2.0 flash drive write speed is 5M/S - 10M/S or you will lucky to get 11M+.
Different device and different platform will affect a lot on the speed testing.
if you want to save 1GB film in our USB flash drive,that you need the time is 2 mins,it save your time.
2.Why the USB flash drive real capacity is not correct capacity?
Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB
calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;
so there are some differences between display capacity and nominal capacity of flash memory product
About capacity:
4GB=approximately 3.5GB-3.7GB
8GB=approximately 7.4GB-7.8GB
16GB=approximately 14GB-15GB
32GB=approximately 28GB-30GB
64GB=approximately 58GB-59GB
128GB=approximately 115GB-120GB
3.Note for the delivery (Please read before ordering ):
Value is less than 15$ Mode of transport = China Post, E-Packet Plus & Alibaba 3C Economic Package
1.Every shipping mode is sent with a tracking number, but there are several Countries or Areas can only be tracked before leave China.
2.The shipping leadtime to most of the countries, normal is 15 - 45 working days( Russia and Brazil 30- 60 working days)
3. If your Confirmation Time is coming,and still not do receive the goods,please contact with us to extend the delivery date and extend the delivery date at yourside at the same time.
4. However, Please do trust us. You will get the package in time.
5. If your Items is not received in 60 days,we will 100% refund
6. Please do not open dispute within 60days,Thanks for your kind understanding.
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