The most direct concerns lighting.
The best battery solution is one 6V and one 12V battery. The capacity of the battery should be the same, i.e. the "amp hours" of both batteries must be the same. When charging, two batteries should be connected in series to improve the efficiency of the solar panel. In this way, two batteries connected in series can produce three sets of voltages: 6 V, 12 V and 18 V.
The 6V pack allows you to charge cell phone batteries, but you need to know a certain amount amount of knowledge in electronic technology and making a homemade charger. Others may be equipped with lights, small speakers, etc. Except for the lights, everything else needs to be modified before it can be used.
If you are not good at this (electronic technology), the most practical way is to ask someone to make a device that reverses18V DC power supply to 220V 50Hz AC power supply. Many household appliances can be used directly.
Your battery panel can theoretically produce a current of 1.1 A and is equipped with a battery with an optional capacity of 15 Ah (18 V). Can be used for all electrical devices consuming less than 30 W of total power.
3. According to Baidu's map query, there are three solar fan manufacturers in Foshan, namely Foshan Shunde District Leliu Weimeng Electric Fan Factory, Foshan Nanhai Kunfeng Home Appliance Factory and Foshan Qiangfeng Electric Co., Ltd. The three companies are specialized in the production A. manufacturer of electric fans and solar products. Foshan, called Zen, is the third largest city in Guangdong province and a provincial municipality. It is located in the center of Guangdong province and the hinterland of theta of the Pearl River. It borders Guangzhou to the east and Zhongshan to the south. Historically, it was one of the four most famous cities in China.