I changed out my. Halogen bulbs and things are a little better but not great. I want to put some LEDs but there seems to be something goes over the bulb to provide the twist lock in place that’s doesn’t ship with the LEDs. What am I missing?

 

the retainers are what you are looking for, but they seem to be bulb proprietary. AZ Optics on here might be able to help, or chech out Retrofitsource.com and headlightrevolution

H7 LED Adapter Holders H7 Retainers Clik Socket Base for Mercedes Benz C/B/GLA/GL/GLS Series Ford Edge (C300 C350 Sport CLS GL Ford Edge Installation) 2 Pack
by ligdeun
Learn more: https://smile.amazon.com/dp/B07R2CTC..._HjRhEbMMGF512