Where in Guangzhou Electrical wholesale market (Switch, socket,dimmer etc.)?

Hi, for what you want, it is best to find at the hardwares wholesale market. The Huancuiyuan Market at no. 23, Heliu Street, Nan'an Highway, is recommended. They are only around 5km apart. You can take a taxi to reach with the fare of no more than CNY20. Or take city bus at Middle Renmin Road stop to Zhongshan 8th Road. Then walk north to find it at Heliu Street.

Thanks Johnson. Do you know Fang Cun Tea Market? and how will I go there?

Oh, I know the market. You can walk to Ximenkou (Zhongshan 6th Road) bus stop and take bus no. 193. Get off at Shancun and walk to the market within 450yd. It is only around 7km away from Middle Zhongshan Road, so you can also take a taxi to reach.