SATCO Lighting S21204 4W G16.5 LED, Clear, Candelabra Base, 90 CRI, 2700K, 120V

It puts out 350 lumens and Satco rates it as a 40W incandescent replacement, so the light level in a chandelier or bath bar stays about where it was while the draw drops from 40W to 4W. Colour is 2700K warm white, which matches the yellow-warm look of the incandescent globes most of these fixtures were built around.

The S21204 is dimmable on 120V line voltage. It is an LED filament lamp, so the lit element dims visually much like a filament rather than switching in steps. As with any low-wattage LED, a dimmer loaded with only a few 4W lamps may sit below the dimmer's minimum load, so group enough lamps on the circuit or use a dimmer rated for LED loads.

Both are fine. It is an enclosed rated lamp, so sealed glass globes and lanterns that cook off ordinary LEDs are within spec. It also carries a wet location rating and is listed for indoor or outdoor use, which covers exterior sconces, post lanterns, and coach lights exposed to rain.

Yes, it is Title 24 compliant, which matters if you are specifying lamps for new residential work or a retrofit in California. It is also FCC compliant. It is not DLC listed, so it will not qualify for rebate programs that require DLC product.

That is what this one is built for. The glass is clear with a visible LED filament, so you see the lit element the way you would with a vintage-style incandescent globe. At 90 CRI and 2700K the colour rendering is high enough for dining rooms, hotel lobbies, and retail where skin tones and finishes need to look right. The 300 degree beam spread means it throws light all the way around rather than in one direction.

Burning position is universal, so base-up, base-down, or horizontal all work. That covers downward-facing vanity bars, upward-facing chandelier arms, and horizontal sconce sockets without a separate part number for each orientation.

Average rated life is 15,000 hours. For a property manager running corridor or lobby chandeliers roughly 12 hours a day, that works out to around three and a half years per lamp, which is the number to use when planning a group re-lamp rather than chasing individual failures.

No on both. The S21204 is a fixed 2700K lamp with no CCT selector switch, and it is not a three-way lamp, so it will run at full output in a three-way socket rather than stepping. If you need multiple colour temperatures across a building, standardize on one CCT per area instead.

Glass envelope with a nickel plated aluminum base, weighing 0.04 lb. The light weight matters on delicate chandelier arms and on crystal fixtures where a heavy lamp strains the socket.