Usb Mini Fan, a ideal design for both
outdoor or in office or at home. You don`t need to worry about the high
temperature in summer when you have this Mini Fan . As a mini fan, you can take
it in your bag to anywhere. And it can cool you down when you are hot.
Strong wind and no noise: The Mini Handheld Fan uses a brushless DC motor to provide
strong wind while quiet, energy-saving and stable operation. The maximum
rotating speed of the fan is about 3520 rpm which is enough to keep you cool,
works by accelerating airflow, low noise, giving you a cool and wonderful
summer.
Adjust speed: Our mini Portable Fans have 3 adjustable
speeds, press the power button repeatedly to adjust the appropriate fan speed
you need.
With USB cable: USB port rechargeable, powered by lithium
polymer battery, our Mini Usb Fan comes with usb cable which can be charged
with computer, power bank , mobile power and other devices.
Ideal design and portable solution: The size of the mini handy
fan is 206*85*235mm, easy to take.
Usage: Including outdoor using, you also
can use this Handheld Fan in office or at home to put it on the desk. With low
noise and smooth wind, others will be not disturbed.
Mobile phone holder: This handy mini desk
fan is also a mobile phone holder when put on the desk or table. Small body,
big power, enjoys the cool summer and gentle wind at anytime and anywhere.
Mini Fan Usb Fan,Small Desk Fan,Usb Desk Fan,Mini Usb Fan SHENZHEN HONK ELECTRONIC CO., LTD , https://www.honktech.com
It is reported that scientist Budai is working with a group of scientists at the University of Georgia and the Oak Ridge and Argonne National Laboratory to study a new set of crystals that produce the correct blend of white LEDs and other uses.
The team used cerium oxide and aluminum oxide powders to synthesize nanocrystals as raw materials, because the unique properties of rare earth elements are very suitable as dopants and additives, and have good magneto-optical properties. 
According to foreign media reports, rare earth lanthanum nanocrystals may become a missing raw material for making white LEDs cheaper and more energy efficient.