What about Yuguan Electronic City, Zhongxing West Street and Guang Chen Group Headquarters? In addition, Guanglong Electronic City also sells accessories. What I want to say is that I heard a friend say that although the circuit principle of Liquid Essence is the same as that of CRT, the electronic components they use are not of the same level, so please be cautious.

Then you can go to any electronic appliance repair shop and ask.