Maybe no such statistics can be obtained from the smart light switch marketplace, because different manufacturers can establish various sales channels. This should not be a key when you consider whether to do the business. As a buyer, you're expected to do research to the local marketplace to figure out the demand. You may have design or own product idea. Then OEM/ODM should be found.
Shenzhen Unigreat technology co., LTD., a sought-after company, is renowned for the strong capacities of designing and manufacturing smart home products. The smart power strip series is widely praised by customers. Materials selection of Unigreat Smart Bulb wifi smart outlet is based on scientific research. It focuses on the relationship between materials and environmental issues in order to propose design strategies to achieve reliable quality. The product is strictly checked by QC team for many rounds to make sure no quality problems.
Unigreat's target is to lead the development of wifi switch market. Contact us!