What are the advantages of white LED? Which white LED in Shenzhen is better?

The advantages of white LED are: 1, high light efficiency and more energy saving than low color temperature lamps (with a few exceptions); 2. Summer is refreshing; 3. White LED is generally cheaper than low color temperature lamp. There are thousands of LED enterprises in Shenzhen, and the local LED I use in Shenzhen is the product of Ruifeng Optoelectronics, which is of good quality and famous in China.