SATCO Lighting S12431 12.5W LED A19, Clear, Medium Base, 4000K, 90 CRI, 120V

It is. The S12431 carries a wet location rating and is listed for both indoor and outdoor use, so exposed porch fixtures, coach lights and covered entries are all fine. Burning position is universal, so it can go base up, base down or horizontal without affecting life.

The S12431 is a dimmable lamp on 120 volt, 60 Hz line power. It is not a three-way bulb, so don't put it in a three-way socket expecting three levels, and it has no selectable color temperature switch, it is fixed at 4000K.

4000K is a neutral, slightly cool white. For hallways, laundry, garages, stairwells, back-of-house and commercial corridors it reads clean and bright. For unit living rooms and bedrooms where tenants expect the warm glow of an incandescent, most property managers stay at 2700K or 3000K. The S12431 is fixed at 4000K with no color-selectable switch, so pick the temperature at the order, not at the fixture.

90 CRI means colors render closer to how they look under natural light. It matters where people judge color or finish quality, retail displays, hospitality lobbies, model units, exam and treatment spaces, paint and material sample areas. The S12431 delivers that at 90 CRI with 1500 lumens off 12.5 watts. For a back stairwell or a mechanical room, an 80 CRI lamp does the job just as well.

Worth thinking about. The S12431 uses a clear glass lens over LED filaments, so the filament strands are visible and the source is a bright point rather than a diffuse glow. That is the look you want in exposed-bulb pendants, sconces, cage fixtures and vintage-style fixtures. In a bare open socket at eye level, or a shade that leaves the bulb visible, a frosted A19 will be easier on the eye.

Close to it. Beam spread on the S12431 is 320 degrees, so it lights nearly omnidirectionally the way a filament incandescent does, which suits exposed pendants, chandeliers, table lamps and ceiling fixtures where you don't want a dark spot behind the base. For downward-only throw in a can or track head, a reflector lamp is the right choice instead.

Average rated life is 15,000 hours. On a common-area fixture running roughly 12 hours a day that is in the neighborhood of three and a half years before you're back on the ladder. Current draw is 0.104A at 120V, which is useful when you're counting how many lamps you can hang on one circuit in a corridor or garage.

No. The S12431 is not DLC listed, so it won't qualify for programs that require DesignLights Consortium listing. It is FCC compliant, and it is marked lawful for sale in California, which matters if you're specifying for a CA property.

Construction is aluminum and glass, with a glass lens. There is no plastic shell, which is part of why it holds a wet location rating and why it looks like a traditional bulb in an exposed fixture. Glass does mean handle it as glass on a high-ceiling relamp.

Order Satco S12431. It is an A19 shape, Type A lamp, medium base, clear glass, 12.5W, 4000K, 90 CRI, 1500 lumens, 120V. Clear is the only finish this model comes in, so the part number alone pins the whole spec.