SATCO Lighting S8490 15.5W, A19 LED, 4000K, Medium Base, 120V, 4-Pack

No. The S8490 is a non-dimmable lamp, so it should only go into fixtures on a standard on/off circuit. Put it on a dimmer and you can get flicker, buzz, or early failure. If the room is on a dimmer, pick a dimmable A19 LED instead or swap the dimmer out for a toggle switch.

4000K is a neutral, cool white, between warm white 2700K/3000K and daylight 5000K. It reads clean and slightly blue next to a soft-white lamp, so if your corridors or units are running 2700K or 3000K you'll see the difference in the same space. For common areas, offices, garages, and stairwells where crisp light is wanted, 4000K is the usual pick. For fleet work, standardize a whole area on one color temperature rather than mixing.

Color rendering is 90+ CRI, which is above the 80 CRI typical of general-purpose LED A-lamps. That makes it suitable where skin tones, finishes, or merchandise need to look right, such as healthcare rooms, hospitality guest rooms, and retail display. Note it is non-dimmable, so it won't suit spaces that need light level control.

The S8490 is sold as a 4-pack, so one order gives you four 15.5W A19 lamps. For multi-family or MRO restocking, figure your socket count and divide by four.

The lamp body is plastic rather than glass, which is a practical advantage in rental units, stairwells, gyms, and anywhere a dropped bulb would otherwise shatter. Each lamp weighs 0.17 lb, so it adds almost nothing to a lightweight shade or pendant.

The S8490 has a frost finish, which diffuses the output so you don't stare at individual emitters in bare-bulb or open-shade fixtures. That makes it a reasonable choice for exposed table lamps and open vanity fixtures where a clear lamp would look harsh.