This glass lens sports linear ridges. Its effects are the same as the COSL with the exception that it significantly narrows the beam in one direction creating a narrow oval.

It decreases center beam brightness by about 50%. This lens is used whenever a long narrow diffuse beam is desired.

Typical uses are for uplighting trees or flagpoles, as a wall wash for low retaining walls and for lighting along paths or driveways.

Read the article on the uses of Lenses and Louvers.

Download IES file of CAST MR-16 Bullet Light with COLL lens.

CAST MR-16 Bullet (no Filter/Lens)

CAST MR-16 Bullet (with COLL Lens) (Long orientatation - ridges perpendicular to surface)

CAST MR-16 Bullet (with COLL Lens) (Short orientatation - ridges parallel to surface)