SATCO Lighting S21221 5.5W G16.5 LED, Clear, Medium Base, 90 CRI, 3000K, 120V

It is rated for wet locations and listed for indoor or outdoor use, so covered porch fixtures, exterior sconces, and vanity globes exposed to moisture are all in scope. It is also an enclosed-rated lamp, which means fully enclosed fixtures and glass globes are allowed, and burning position is universal so it can be mounted base-up, base-down, or horizontal.

Dimmable, yes. Three-way, no. The S21221 is a single-output lamp, so if you are replacing a three-way globe in a lamp with a three-position socket you will only get one light level. For dimming, pair it with a dimmer rated for LED loads; the lamp pulls 0.046A at 120V, 60Hz, so a handful of them is a very light load and low-end dimmer performance depends on the dimmer's minimum load.

At 3000K it reads as warm white, close to the tone of a traditional incandescent globe rather than the yellower 2700K or the neutral 3500K/4000K. The 90 CRI rating means color rendering is high enough for skin tones and finishes to look correct, which is why it gets used over bath bars and in guest rooms. Because the glass is clear with a visible LED filament, you see the filament itself, so it suits exposed-socket and open-globe fixtures. If glare is a concern in a fixture with no shade, a frosted lamp is the better choice.

The S21221 is listed as Title 24 compliant, which matters for residential and multifamily lighting work in California. It is also FCC compliant. It is not DLC listed, so if your utility rebate program requires DLC qualification this lamp will not satisfy that requirement.

Average rated life is 15,000 hours. Running roughly 6 hours a day in corridor or guest bath service, that is about 6.8 years of service before rated failure. At 5.5W drawing 0.046A, a 15-amp branch circuit is nowhere near the limiting factor, so relamping labor is the real cost driver, not load.

Close to it. Beam spread is 300 degrees, so light goes out sideways and down as well as up, which is what you want in a chandelier, pendant, or open globe fixture where the lamp is seen from every angle. That is a wider distribution than a directional reflector or an A-lamp retrofit with a heat sink blocking the base end.

Construction is glass with a nickel plated aluminum base. The nickel plating gives the base better corrosion resistance than bare brass or plain steel in damp and salt-air conditions, and the lamp carries a wet location rating. The whole lamp weighs 0.05 lb, so it puts almost no load on a socket or a hanging shade.

No. The S21221 is fixed at 3000K and is not a CCT selectable lamp, so there is no switch or jumper to change the color. If you need multiple color temperatures across a project, order the separate lamp for each CCT rather than trying to field-adjust this one.