SATCO Lighting S21800 6W, A19 LED, 2700K, Candelabra Base, 220 degree Beam Angle, 120V

No. The S21800 is built on a candelabra base, which is the small screw base (E12) used in chandeliers, sconces and decorative fixtures, not the medium/standard base found in most table lamps and cans. It's an unusual pairing because the bulb itself is A19 shaped, the familiar household bulb profile, on the small base. If your socket is a standard medium screw base, this will not thread in.

Yes, the S21800 is a dimmable LED, so it can run on a dimmer circuit. For a multi-lamp chandelier, use the same lamp in every socket; mixing dimmable LEDs with other lamp types on one dimmer is where flicker and uneven dimming usually come from.

It puts out 480 lumens at 6 watts, which is in the range of a 40 watt incandescent. With a 220 degree beam angle it throws light nearly all the way around the bulb rather than in a cone, so it works in open chandeliers, sconces and ceiling fixtures where you want general spread rather than a spot.

2700K is warm white, the same soft yellow tone as a standard incandescent or halogen lamp, so it matches legacy lamps and other 2700K LEDs already in the building. It will read noticeably warmer than a 3000K or 4000K lamp, so don't mix them in the same room. Color rendering is 80+ CRI, which is the normal spec level for corridor, guest room and common area lighting.

Yes. The S21800 is a 120 volt lamp with integral driver electronics, so it screws straight into a standard line voltage candelabra socket. No external transformer is needed. It is not intended for 12V or 24V low voltage fixtures.

Frost. The A19 envelope is a frosted plastic finish, which diffuses the LED sources so you don't see hot spots through the glass. That makes it a better choice than a clear lamp in open shades and exposed sockets where the bulb is in the sight line, and it is the only finish offered in this lamp.

Yes, each lamp weighs about 0.05 lb and the body is plastic rather than glass, so it puts very little load on the socket or on the arms of a chandelier. The plastic envelope also holds up better than glass in high-traffic multi-family and hospitality spaces where lamps get knocked.