SATCO Lighting S21301 4W CA10 LED, Frost, Candelabra Base, 90 CRI, 3000K, 120V

Yes. The S21301 is an enclosed rated lamp, so it can go in a closed glass sconce, lantern, or jar fixture without voiding the lamp's rating. It also carries a Wet location rating and is listed for indoor or outdoor use, which covers covered porch lanterns and exterior wall sconces. Burning position is universal, so base-up, base-down, or horizontal all work.

Yes, the 4W CA10 filament lamp is dimmable on 120V, 60Hz line voltage. Note the current draw is only 0.033A per lamp, so on a chandelier with just a few lamps the total load may fall under the minimum load an older incandescent dimmer needs to run smoothly. On small fixtures, use an LED-rated dimmer.

The S21301 runs 3000K, a warm white that is a shade cooler than the 2700K most decorative candelabra lamps ship at. It is a fixed color temperature, not CCT selectable, so what you order is what you get. The frost coating diffuses the LED filament, which gives a softer look than a clear lamp in an open-shade fixture. If the rest of your fixtures are 2700K clear, you will see the difference side by side.

At 90 CRI the S21301 renders color well enough for hotel lobbies, dining rooms, and retail display where skin tones and finishes matter. It is also Title 24 compliant, which is what California jobs ask for on residential and some commercial lighting. It is not DLC listed, so it will not qualify for utility rebate programs that require DLC.

No. The S21301 is not a three-way lamp, so in a three-way socket it will light at one level only. It will dim from an external dimmer on the circuit, but it does not step through three-way settings.

The lamp has a 300 degree beam spread, essentially omnidirectional, so it lights a room from an open chandelier arm or an upward-facing sconge the way an incandescent candle lamp did. The LED filament construction is what gives that wide distribution rather than the forward-throw pattern you get from a chip-on-board candelabra lamp.

Rated at 15,000 average hours. For a chandelier burning 6 hours a day that is roughly 6.8 years before a relamp cycle, which is the case for group-relamping tall or hard-access fixtures rather than spot replacing. Each lamp pulls 4W against the 40W incandescent it replaces.

Glass with a nickel plated aluminum base, so it is a real glass decorative lamp rather than a plastic-diffuser type. The whole lamp weighs 0.035 lb, which matters on delicate chandelier arms and clip-on shade fixtures that were never meant to carry weight.