SATCO Lighting S21351 8W T10 LED, Clear, Medium Base, 90 CRI, 3000K, 120V

Yes, the S21351 is an enclosed rated lamp, so it can go in a sealed or fully enclosed fixture without the heat trap shortening its life the way it does with LEDs that carry no enclosed rating. That covers jelly jars, sealed sconces, and closed globe fixtures common in corridors and stairwells.

Wet location rated, and listed for both indoor and outdoor use. That means exterior sconces, covered entries, porch fixtures, and parking structure lighting are all in scope, not just damp interior spaces like a laundry or bath. Burning position is universal, so it can be mounted base up, base down, or horizontal.

No. The S21351 is not a three-way lamp. Put it in a three-way socket and you will get a single output level on whichever contact energizes it, not the three step range. For a three-way table or floor lamp in a furnished unit, you need a lamp specifically built three-way. It will dim on a proper LED dimmer, which is a different thing from three-way switching.

Yes, the S21351 dims. It is an LED filament lamp on 120V at 60Hz drawing 0.067 amps, so it needs a dimmer rated for LED loads, not an old incandescent style dimmer sized for resistive wattage. With a draw that low, be careful about minimum load on the dimmer if only one or two lamps are on the circuit.

90 CRI means colors render close to how they look under an incandescent source, which matters in hospitality lobbies, retail display, healthcare exam areas, and anywhere a property manager is judged on how finishes and skin tones look. Paired with 3000K, the S21351 reads warm white, not the cooler light of a 4000K or 5000K lamp. If a facility is standardized on cooler light, this one will not match; it is a fixed 3000K, not color selectable.

300 degree beam spread. The filament construction throws light almost all the way around the tube rather than forward in a cone, so it works in open fixtures, exposed pendants, chandeliers, and bath bars where the bulb itself is visible and you want light off the whole length. It is the wrong choice if you need a directional wash or downlight, where a reflector lamp belongs.

No. It is a 120V lamp at 60Hz. On a 277V branch circuit, common in commercial and institutional buildings, it will fail. Confirm the socket is on a 120V circuit before ordering for a facility standardization.

It is not DLC approved, so it will not qualify under a utility program that requires a DesignLights Consortium listing. Budget the retrofit on the energy saving alone: 8 watts replacing a 60W incandescent, rated 15,000 hours average life.

Rated 15,000 average hours. On a dusk to dawn or 12 hour corridor schedule, that is a little over three years per lamp before you are back on the ladder, against the few thousand hours a 60W incandescent gives you in the same socket. Universal burning position means it holds that rating base up or base down.

Satco S21351. It is the clear finish version of the 8W T10 LED filament lamp, 90 CRI, 3000K, medium base, 120V. Clear is the only finish this one comes in, so if the spec calls for a frosted or satin tube, S21351 is not it.