Led lights do not have a lampshade, no lampshade, no one can give a complete answer
Add lamp shade one is to allow the light to scatter, illuminate even, not dazzling, but increase beautiful degree. If there is no requirement for the above two points, you may not add a lamp shade, but you must do a good moisture-proof
Led lights have a variety of shades, some for light, some for protection, and some for waterproof Dust also has, because when light work will be fever, and then to produce a small magnetic field, the surrounding dust absorption in the past, for a long time will affect the service life of the lamp Sometimes it's like wearing clothes, not wearing clothes
I don't know if you're talking about a lens or a common cover. The lens is designed for amplification and uniformity The covers are designed to protect and avoid the glare.
