How do you understand the directionality of LED light source?
LED has a semiconductor substrate, so it can not shine on both sides. It can only be irradiated in one direction, and many high-power LED are assembled with lenses, so it can only be irradiated forward with limited angle.
Does that mean the light emitting angle of the light source?
The appearance of special structure of LED, makes it impossible from all sides will lighting when there is a corner of the light cannot reach, this is the direction of the.LED LED light emitting angle of about 120 degrees. The energy-saving lamp lighting angle is almost from all sides can shine, to approximate that the lighting angle is 360 degrees.
