SATCO Lighting S11645 12.5W LED Downlight Retrofit, 5-6in, 5000K, 120V, Dimmable, White Finish

The S11645 carries a wet location rating, so it can go in showers, above tubs, and in other spots that see direct water. It is cULus Classified. One caveat on where it belongs: the unit is designated for indoor use, so for a covered porch or soffit run confirm the housing itself is rated for that location before you spec it.

Title 24 compliant, which is what gets it accepted on California residential permit work where recessed luminaires have to be on the compliant list. It is also FCC compliant, which matters in buildings where a large lamp count can otherwise put noise on the line.

Installation is a screw-in job. The retrofit uses a medium adapter that threads into the existing socket in the can, and the unit mounts up to the ceiling against the housing, so an in-house maintenance tech can swap it at the fixture with the breaker off. No new wiring, no can replacement. Satco publishes step-by-step instructions for the unit at https://assets.satco.com/dj18eqo18/image/upload/v1713463030/products/S11645/S11645_Instructions.pdf.

Every S11645 is fixed at 5000K with a white trim, so there is no field setting to get wrong and no drift between units installed a year apart. It is not CCT selectable and not wattage selectable, which is exactly what you want when a dozen different techs are doing the swaps. Rated life is 35,000 hours, so at roughly 12 hours a day of corridor or common-area burn you are looking at about eight years between ladder visits.

Go with the retrofit when the cans are already in the ceiling, are in sound condition, and you are only after better light and lower draw. The S11645 threads into the existing socket through a medium adapter and mounts up against the housing, so there is no ceiling cutting, no wire pulling, and no inspection of new rough-in. Buy new housings instead when you are adding locations, moving them, changing the aperture size, or the existing cans are damaged or the wrong spacing. On a unit turn or a corridor relamp, the retrofit is the faster path.

White finish, round shape, in a utility trim style, and that is the only configuration this model is built in. Against a painted white ceiling the flange reads flat and disappears, which is the usual reason it gets specified for corridors, closets, garages, and utility areas rather than for a feature ceiling.

The body is die-cast aluminum, which is the material that carries LED heat away from the driver and diodes rather than trapping it the way a plastic housing does. That matters in a shallow or insulation-contact can where there is no airflow around the unit. It is worth noting the rating is on the retrofit itself, so for an IC application the existing housing's own rating still governs.

Satco publishes the full spec sheet for the S11645 at https://media.satco.com/specsheets/pdf/S11645.pdf, and the installation instructions separately at https://assets.satco.com/dj18eqo18/image/upload/v1713463030/products/S11645/S11645_Instructions.pdf. Order and submit under manufacturer part number S11645.