This is a light diffuser for the SmallRig P96L RGB light. Here are the print settings:
 

Layer height: 0.2mm
Filament: White PLA
Top shell layers: 1
Top shell thickness: 0mm (Change to a higher value for less light passthrough)
Bottom shell layers: 1
Infill density: 10%
Infill pattern: Honeycomb

Support:
Type: Tree (On build plate only)

Print with the flat side down. Photos of model printed on BambuLab A1 using eSUN white PLA.