This is a model I designed to hold a Sensky touchless IR switch.  When mounted to the door frame at the hinge side, it closes the circuit to turn on LEDs.  I have installed this setup with some LED strips in 2 closets and it has worked perfectly.

You can used adhesive tape or screws to mount.  The fit is tight on the sensor, adjust your scale of the print slightly if you run into issues.

Model can be printed in any material, the model shown was printed in Matterhackers ABS.