Toppers for PEX (SharkBite) to hold PixaBulb

These are designed to go on top of PEX tubing commonly sold under the brand SharkBite. Its available at many hardware stores including Home Depot.

They hold the base only of a PixaBulb (remove clear lens).

Here is an overview:
https://www.youtube.com/watch?v=7jwMc-yHRuU