These diffuser and shader caps are designed to reduce and direct light from ceiling mounted MR16, GU5.3 LED bulbs—perfect if your bulbs are too bright or scatter too much light. A great solution for balancing light levels without replacing your bulbs.

Originally created to tame slightly overpowered bulbs, these snap-fit accessories redirect or soften the beam as needed.

Included Models:

- Diffuser (0.4mm, no hole) – provides light diffusion, white/transparent PETG recommended

- Shader (0.4mm, 10mm hole) – open for central beam and shades on edges, black PETG recommended

- Shader (0.4mm, 15mm hole) – open for central beam and shades on edges, black PETG recommended

- Shader (0.4mm, 20mm hole) – open for central beam and shades on edges, black PETG recommended

You can adjust thickness in your slicer to fine-tune the brightness and diffusion to your taste.

It is recommended to use housing metal spring to keep bulb and diffuser secure inside.

Print & Material Notes:

- Tested with PETG (recommended over PLA for heat resistance)

- Works reliably with bulbs up to 4W, it may handle more, but not tested.

- Print on smooth PEI for less diffusion or textured PEI for more

- You may also consider to use Transparent PETG for diffuser purpose if you want to avoid light intensity decrease even slightly

- Designed to press-fit into the front of standard bulb housings

Happy printing—enjoy the perfect glow!

P.S. If you are looking for the solution to reduce 3D printer noise, have a look on soundproof cabinet design, crafted from IKEA furniture. This cabinet reduces printer noise and ensures impressive 36.5 dB(A) at just 1 meter away. Detailed instruction how to build it you may find here:

https://www.tinkervault.com/3d-printer-soundproof-enclosure?lang=en

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Bulb diffuser&shader MR16 GU5.3. 4 models

0.2mm layer, 2 walls, 100% infill