Use recessed fixtures designed for sloped ceilings or adjustable "gimbal" or "eyeball" lights that let you aim the beam down toward the sink. A fixed light mounted flush with the slope generally shines perpendicular to the ceiling, which can direct much of its light away from the work area.

Before installing the lights you already bought, check that they tilt far enough to compensate for your ceiling’s slope. Some dedicated sloped-ceiling fixtures accommodate slopes of approximately 10° to 45°; [HALO’s sloped-ceiling housing](https://www.cooperlighting.com/global/brands/halo/269397/h645ic-series) is one example.

If your lights have separate housings and trims, check whether the manufacturer has an approved adjustable or slope-specific trim for that housing. Swapping the trim may be enough, though some installations need a different housing.

Position the sink light over the basin or work surface, in front of where you stand. Placement matters as much as aiming: a light behind you will cast your shadow onto the sink even if it points straight down.

To reduce remaining shadows, overlap the light from nearby fixtures. One narrow spotlight may leave parts of the work area in shadow. Add under-cabinet lighting for counters beneath upper cabinets, where ceiling lights often cannot reach well.

Before cutting openings in the ceiling, have your electrician temporarily position and aim a fixture. Stand at the sink to check the light and glare. With a high ceiling, light output and beam spread also affect the result, so there’s no reliable spacing rule that works for every installation.