Retrofit vs BHLM

Hey guys. Excuse my ignorance, but what’s the difference between a retrofit headlight and the BHLM? Thank you.

 

Retrofit puts new projectors/led accessories, BHLM I think just makes most of the chrome black. You can do both for a blacked out look with better lighting as well

 

A retrofit is modifying the stock headlight housings to incorporate outside elements like HID projectors or rgb angel eyes etc...

BHLM (blackout head light mod) is cracking apart the headlight housing and painting/coating the interior bits black. One is not mutually exclusive of the other. If you do a search, theres a dude here that does everything with many options at a great price.