What is a projection light? What's the use?
he can in the wall, ground projection pattern you want to do advertising, decoration, warning etc.
The projection lamp is a use of light on the screen or wall lamp for projection screen, and movie similar principle;
The projection lamp is a use of light on the screen or wall lamp for projection screen, and movie similar principle; he can in the wall, ground projection pattern you want to do advertising, decoration, warning etc.
