5.Align the two screw holes on the bottom of mechanical part to the two bolts on the base of the housing, and twist the mechanical part clockwise a little bit in order to engage it with the base. Screw the two bolts on the base, and then connect and fix the connection bus to the PCB board on the mechanical part.
Note: The camera module on the mechanical part is very sensitive. Please be careful when installing this part.
6.Remove the lens protection cover before installing the bulb. Align the 3 bolt holes into the 3 housing bolt holes, and screw three M3 bolts with the attached small screw driver to fix the bulb.
M3 Blot
M3 Blot 
