made to fit the Elegoo Ceinauri Carbon riser shared by Jesusfreak. Glue would not stick on my led strips, so I made these quick diffuser/holder. Printed it in Elegoo rapid Petg transparent. Might be a tight fit pushing both holder, and led behind the tabs, so I routed the leds outside the tabs if needed. 

For better diffusion, White PETG might work better.