The Surefire UE Switch Housing Rear Cap Assembly will not fit the Surefire E2D LED Defender Ultra Light. From what information I could find I don't believe there is an available pressure switch assembly for that light. I recommend contacting SureFire to see if they have anymore information.
The Duel Fuel Scout Light Pro is compatible with switches: ST07, SR07-D-IT, and SR07. They can be found linked below:
https://www.opticsplanet.com/surefire-tailcaps-switches-stxx.html
https://www.opticsplanet.com/surefire-sr-d-it-remote-dual-switch-for-weaponlight.html?_iv_code=FS-WLA-DSSR07DIT-DS-SR07-D-IT&_iv_flashlight-model=scout-light-weapon-lights
https://www.opticsplanet.com/surefire-weaponlight-switch-with-picatinny-rail.html
The SureFire Remote Pressure Switch Assembly will not work with that light.
THe Surefire UE Switch Housing Rear Cap Assembly & 7in Cable For Scout Light Systems will not work with the Primary Arms Ultimate Weapon Light Gen 2. We do not currently have that particular tape switch available.
No, the Surefire UE Switch Housing Rear Cap Assembly & 7in Cable is designed for SureFire scout lights and is not compatible with E-Series lights.
The Surefire UE Switch Housing Rear Cap Assembly will not fit the Surefire E2D LED Defender Ultra Light. From what information I could find I don't believe there is an available pressure switch assembly for that light. I recommend contacting SureFire to see if they have anymore information.
The Surefire UE Switch Housing Rear Cap Assembly is for the SureFire Scout Series lights and will not work with the SureFire G2X Tactical. I am unaware of a compatible Switch Housing Rear Cap Assembly for that light, so I recommend contacting the manufacturer to see if they have a suggestion that will work.
No, this is not compatible.
The UE07 will work with any model of Surefire Scout light both mini and full size.
Yes, you can disconnect the pressure switch from the tail cap and use any other Surefire compatible pressure switch.