tcseacliff

hey folks. have to ask a question,a very dumb question but need help. my car got hit in rear , 3rd brake light broken, so got a new one. question is when i removed the light i did not pay attention to how it came out so the qustion is do the brackets hold from the inside or do they drop in from the outside ,then the leds?? when i tried it from the outside even after tighened they just pull right out or do they need adhesive??

O5_TRD_tC

inside over the light