SATCO Lighting S21273 5.5W B11 LED, Clear, Candelabra Base, 90 CRI, 2700K, 120V

Yes. The S21273 is an enclosed rated lamp, so it can go in a closed globe, a sealed sconce, or a lantern without the heat trapping cutting its life short. It also carries a wet location rating and is rated indoor/outdoor, which covers covered entries, porches, and exterior post lanterns. Burning position is universal, so base up, base down, or horizontal all work.

That is the swap it is built for. The S21273 draws 5.5 watts and puts out 500 lumens at 2700K, which Satco rates as a 60 watt incandescent equivalent. It is a B11 torpedo shape on a candelabra base at 120 volts, so it goes straight into the same socket in a chandelier or sconce. The clear glass with an LED filament keeps the look of the old bulb rather than the frosted plastic look of early LED candles.

The S21273 has a candelabra base, the small screw base found on most chandeliers, wall sconces, and decorative fixtures in the US. If your existing bulb has a noticeably larger screw shell, you have either an intermediate or a standard medium base socket and this lamp will not thread in. Check the old bulb first: candelabra is the small one, and it is what most B11 torpedo lamps use.

It is a dimmable lamp. The catch on any LED retrofit is the dimmer itself: older incandescent dimmers were sized for a load far above the 5.5 watts this bulb pulls, so a chandelier full of them may flicker or drop out at the low end of the slider. If you are replacing a full fixture of incandescent candles with these, plan on an LED-rated dimmer. The lamp runs on 120V, 60Hz and draws 0.046 amps.

2700K, the warm white that matches an incandescent candle bulb. It is a fixed color temperature, not a selectable CCT lamp, so every bulb out of the box is the same 2700K. If you are relamping a chandelier a few sockets at a time, that consistency matters more than it sounds, mixed color temperatures in one fixture read as a defect to anyone standing under it.

That is exactly where the 90 CRI on the S21273 earns its place. At 90, skin tones, wood, fabric, and food render close to what they look like under incandescent light, where a typical 80 CRI lamp flattens reds. Hospitality, retail displays, and residential common areas are the specs that call for it. For a back-of-house corridor or a utility fixture, the color rendering is not buying you anything.

The S21273 is rated at 15,000 average hours. Against the roughly 1,000 hours of a standard incandescent candle bulb, that is a real difference for anyone maintaining high or hard-to-reach fixtures, a two-story foyer chandelier or a stairwell sconce goes from an annual lift job to something you touch once. For an MRO or property maintenance program, the labor saved usually outweighs the lamp cost.

Yes, it is rated for wet locations and listed for indoor and outdoor use, so an exterior lantern, a porch sconce, or a coach light is within its rating. Being enclosed rated matters here too, since most outdoor decorative fixtures are sealed glass boxes. The 300 degree beam spread throws light all the way around rather than in one direction, which is what you want in a lantern seen from several angles.

The S21273 is Title 24 compliant, which is what a contractor or specifier working California JA8 residential projects needs on the lamp schedule. It is also FCC compliant. It is not a DLC listed product, so if your utility rebate program requires a DLC qualified lamp, this one will not be on that list.

Not as a three-way. The S21273 is a single-output lamp, so in a three-way socket it will light at full output on every click of the switch instead of stepping through low, medium, and high. It will not be damaged, you just lose the levels. If you need stepped output from a candelabra socket, you need a lamp built as three-way. On a standard dimmer, though, this bulb dims fine.

Each S21273 draws 0.046 amps at 120 volts, so the lamp load is negligible by circuit standards, a 20 bulb chandelier is under one amp. For a property manager or electrician doing a building-wide relamp, that is the useful number: pulling 60 watt incandescents for these cuts each socket from roughly half an amp to under a twentieth of one. Size the circuit for the fixture and any transformers, not the lamps.

That is the case for the clear version. The S21273 uses an LED filament behind clear glass in a B11 torpedo shape, so the lit element reads like a filament rather than a white plastic dome, which is what you want in a fixture where the bulb is visible with no shade. Glass and nickel plated aluminum construction. In a fixture with shades or a diffuser, the clear glass buys you nothing and a frosted lamp will soften glare better.