ETC Source 4WRD Color II Installation And User Manual page 12

3. Position the reflector insert in the reflector housing over the top of the
reflector, taking care to align the centers of the reflector insert and
reflector.
4. Gently rotate the reflector insert clockwise until the teeth on the
reflector insert tabs are secured against the bracket wings on the
reflector housing. Do not use excessive force when rotating the
reflector insert, as the reflector insert may flex under pressure.
Note:
No additional diffusion is used with the reflector insert. The
reflector insert replaces the older Source 4WRD Color diffusion
insert.
5. Replace and secure the shutter barrel and lens tube.
8
Rotate clockwise
until teeth lock
under bracket
wings
Source 4WRD Color II Installation and User Manual
Position reflector
insert over existing
reflector