SATCO Lighting S21349 5.5W T10 LED, Frost, Medium Base, 90 CRI, 4000K, 120V

Yes. The S21349 is an enclosed rated lamp, so it can go in a sealed or closed globe fixture where a non-enclosed-rated LED would overheat. It also carries a Wet location rating and is listed for both indoor and outdoor use, which covers vestibule fixtures, covered entries, and exterior sconces.

It is a dimmable lamp on 120V, 60Hz line voltage. It is not a three-way bulb, so it won't step through levels in a three-way socket, and the color temperature is fixed at 4000K rather than selectable.

No. The S21349 is 4000K, a neutral white that reads noticeably cooler and crisper than the 2700K warm white common in residential and hospitality fixtures. If you are relamping a corridor or unit alongside existing warm lamps, they will visibly mismatch. 4000K suits back-of-house, laundry, storage, and commercial areas where you want a cleaner light. Color rendering is 90 CRI, which holds skin tones and finishes accurately.

Burning position is universal, so base-up, base-down, and horizontal mounting are all fine. That matters for sconces, picture lights, and vanity bars where the socket orientation isn't vertical. Beam spread is 320 degrees, so it throws light almost all the way around rather than in one direction.

No. The S21349 is not DLC approved, so it won't qualify under utility programs that require a DesignLights Consortium listing. It is FCC compliant and marked lawful for sale in California.

It's an LED filament lamp built with a glass envelope and nickel plated aluminum base, finished in frost. The frost diffuses the filament so you get even light instead of visible hot spots, which is what you want in an exposed-socket fixture where the bulb is part of the look.

Average rated life is 15,000 hours. For an MRO or property maintenance schedule, a fixture running roughly 12 hours a day works out to about three and a half years between changes, which is the point of moving a hard-to-reach tubular socket off incandescent.