How to choose high bay led lights cheap with good quality?

 

As a professional led lighting supplier, I have some ideas , about the method of choosing cheap and good lighting high bay led.

  1. the producing certification
  2. Factory or not
  3. Production delivery time
  4. The warranty of product

More video of China factory lighting details please click:

https://www.youtube.com/channel/UCmxuANIo4JNIIcx8DvTmSfQ/videos