This Product Will Provide PC/PMMA/Clear/Milk Covers for You to Choose from. If You Need a Strong Light, You are Recommended to Choose PC Clear. If You Want a Soft Light, You are Recommended to Use the Milky Cover. the Section of the Cover is not so Clear. It is Better to Have a Little Frosted or Milky Surface. but Because This Model is a Floor LED Aluminum Profile Model, the Light Emitted from the Ground is from the Bottom to the Top. to Avoid Eye Damage Caused by too Strong Light, We Recommend Using the Frosted Cover.