Fet Electric LED String Light Cap

This perfectly seals up an unused light socket on this string light set.

To the best of my knowledge this string light set uses E26 bulb sizes.  I ended up creating an E27 size cap because E26/27 they seem to be pretty interchangeable sizes.  Why did I choose E27?  Well you have to create these threads manually in Fusion 360, and I could only find proper dimensions for E27 to be able to create this myself.  But it fits perfectly!

Printed with 2 walls, 3 bottom layers and 3 top layers, with 15% grid infill, and 0.2 layer height.  I used PETG since it will be outdoors, and I printed in black to match the black string light socket.