SATCO Lighting S19947 11W, 2ft, T5 LED, Miniature Bi Pin Base, 4000K, Type A, 1400 Lumens, 120-277V

No. The S19947 is a Type A lamp, which means it runs off the existing fluorescent ballast in the fixture. Ballast required. You drop it into the bi-pin sockets and leave the wiring alone, so there's no rewiring labor and no bypass. If the ballast fails later, the lamp fails with it, so a ballast-bypass (Type B) lamp is the choice when you want to eliminate the ballast for good.

The S19947 is enclosed rated, so a sealed or lensed fixture is fine. It carries a damp location rating and is classed for indoor use, which covers places like shower rooms, covered exterior soffits, coolers and kitchens that stay out of direct water. Wet-location service, anything exposed to direct rain or hose-down, is outside its rating.

4000K is neutral white, the same nominal color as the common 4100K/4000K cool white fluorescent tubes used in offices, corridors and back-of-house. Color temperature is fixed, not field selectable, so if some of your openings are 3500K or 5000K you'll see the difference side by side. Color rendering is 82 CRI.

11 watts producing 1400 lumens, rated equivalent to a 50W incandescent. Current draw is 0.092 to 0.040A across the voltage range, and it runs on 120V to 277V at 50/60Hz, so it works on both residential and commercial 277V lighting circuits.

The lamp itself is listed as dimmable. Because it operates through the fixture's fluorescent ballast, dimming performance depends on that ballast and its control, not on the lamp alone. On a non-dimming ballast you'll get full output only.

No. Burning position is universal, so the S19947 can be installed horizontally, vertically or base-up in undercabinet, cove, valance or display fixtures with no effect on rated life. Beam spread is 185 degrees, so light is thrown out and around rather than in a narrow band, which suits cove and shelf lighting.

Rated average life is 50,000 hours. Construction is aluminum and glass with a glass lens, so handle it like a fluorescent tube rather than a shatter-resistant plastic LED tube. For food prep areas or gyms where breakage is the concern, a coated or plastic-bodied tube is the safer specification.

Yes, it is marked lawful for sale in California, and the lamp is FCC compliant for electromagnetic emissions.

No, the S19947 is a single-output lamp with no three-way switching. It has one fixed light level at 1400 lumens and one fixed color temperature of 4000K.