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.

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

It is recommended to use a housing metal spring to keep the 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 been tested
• Print on smooth PEI for less diffusion or textured PEI for more
• You may also consider using Transparent PETG for diffuser purposes 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!