The key depends on the power of the solar cell (for solar cells with the same conversion efficiency, this is the surface size), as well as the power of the light source and the battery used. There's definitely no point in having solar cells on your lawn lights. Generally speaking, solar cells with a rated power of less than 1.5 watts are useless products and have no practical value.
Are solar lights useful?
Introduction Are solar lights useful? The key depends on the power of the solar cell (for solar cells with the same conversion efficiency, it is the size of the surface area), as well as the power of the light source and the battery used. lawn