Lighting device assembly with adjustment mechanism

An adjustment member for adjusting a position of an optic assembly relative to a housing configured to a wall, a ceiling, or a surface, wherein the adjustment member comprises:

• a collar slidably coupled to the housing;
• a first groove extending along a vertical axis of a lateral side of the collar;
• a guide plate slidably coupled to the lateral side of the collar;
• a fastener configured to fasten the guide plate to the first groove at a location along the vertical axis of the first groove;
• an interference pattern on the lateral side of the collar extending along the vertical axis of the lateral side of the collar, wherein the interference pattern defines a plurality of steps along the vertical axis, the fastener configured to fasten the guide plate to the interference pattern at or over at least one of the plurality of steps when the fastener fastens the guide plate to the first groove at the location along the vertical axis of the first groove.

A system, comprising:

• an optic assembly comprising a light source;
• a housing configured to secure the lighting device assembly to a wall, a ceiling, or a surface;
• and
• a collar movably coupled to the housing and removably coupled to the optic assembly;
• an adjustment member configured to adjust, relative to the housing, at least one of a position of the collar, a position of the optic assembly, or a position of the light source along a vertical axis, wherein the adjustment member comprises:
• a groove extending along the vertical axis of a lateral side of the collar;
• a guide plate slidably coupled to the lateral side of the collar;
• a fastener configured to fasten the guide plate to the first groove at a location along the vertical axis of the first groove;
• and
• an interference pattern on the lateral side of the collar extending along the vertical axis of the lateral side of the collar.