SATCO Lighting S21316 4W CA10 LED, Frost, Medium Base, 90 CRI, 3000K, 120V

Yes on both counts. The lamp is enclosed rated, so it can go in a sealed globe or lantern without voiding its rating, and it carries a Wet location rating for indoor or outdoor use. Burning position is universal, so base up, base down or horizontal is all fine, which matters in post lanterns and upward-facing sconces.

3000K, which is a soft warm white, a touch cooler and cleaner than the 2700K most incandescent and many LED candle lamps sit at. Mixing 3000K and 2700K in the same chandelier is visible, so pick one temperature per space. Color rendering is 90 CRI, so finishes, wood tones and skin tones hold up better than on a typical 80 CRI lamp. The color temperature is fixed, not selectable.

Dimmable, yes. It runs on 120V at 60Hz and pulls only 0.033A, which is the catch on older magnetic or high-minimum-load dimmers: a handful of these lamps may not draw enough current for the dimmer to behave. A fixture full of them is usually fine; one or two on a legacy dimmer is where flicker shows up.

The frost coating diffuses the LED filament so you don't see hot points through the glass, which is what you want in an open chandelier where the lamp is in view. Beam spread is 300 degrees, so it lights nearly the full sphere rather than firing one direction like a reflector lamp.

Title 24 compliant, yes, and FCC compliant for RF emissions. That covers the two boxes most often checked on California residential and light commercial lighting submittals for a screw-base lamp. It is not DLC listed, so if a utility rebate program requires a DLC entry, this lamp won't qualify for it.

Rated 15,000 average hours. On a lobby or corridor fixture burning 12 hours a day that's roughly 3.4 years per lamp, versus the yearly or more frequent relamping a 40W incandescent candle usually forces. For a property manager the labor on a high chandelier is often the bigger cost than the lamp.

No. It is a single-level lamp, not three-way. Installed in a 3-way socket it will light at one output level only, and depending on the switch position it may not light at all. For a 3-way table lamp you need a lamp specifically built as three-way.

Glass envelope with a nickel plated aluminum base. The nickel plating is the reason it holds up in wet-location and exterior sockets where a plain brass-plated steel base tends to corrode and seize. Each lamp weighs 0.044 lb, light enough for delicate chandelier arms and candelabra-style sockets on swing arms.