SATCO Lighting S49948 8W, 2 Foot LED T8, Medium Bi Pin Base, 4000K, 50000 Avg Rated Hours, 1250 Lumens, Type A, Ballast dependent

No rewiring. The S49948 is a Type A, ballast dependent lamp, so it operates on the existing fluorescent ballast in the fixture. Pull the old F17T8 lamp, drop this one in the same medium bi-pin sockets. If the ballast later fails, a Type A lamp dies with it, so plan on either replacing the ballast or switching to a ballast bypass lamp at that point.

It should. The lamp is 24 inches long with a medium bi-pin base at each end, which is the standard 2 foot T8 fluorescent format. Measure socket to socket on the fixture; if it currently takes a 2 foot F17T8, this drops into the same tombstones.

It is DLC approved, which is what most utility prescriptive rebate programs require for linear LED lamps, and it is listed as Title 24 compliant. It is also FCC compliant. Keep the spec sheet with your rebate paperwork: https://media.distributordatasolutions.com/269/xlsx_satco/264a0bf3b84cf85eaf50667f6aa927a580219a9d.pdf

1250 lumens at 8 watts, with a stated incandescent equivalence of 110W. A 2 foot F17T8 fluorescent draws 17 watts, so you are cutting input power by roughly half for comparable output in a 2 foot fixture.

Yes. 4000K is neutral/cool white, the standard match for commercial fluorescent lamped offices, corridors and back of house. The lamp is fixed at 4000K, not field selectable, so if some areas are 3500K or 5000K you will need to order those separately to keep each space consistent. CRI is 82.

It is rated for damp locations and indoor use. That covers enclosed damp-rated fixtures in garages, kitchens, locker rooms and covered entries. It is not a wet location lamp, so do not use it where it is exposed to direct water or weather.

The lamp itself is listed as dimmable, but since it is a Type A ballast dependent lamp the dimming is performed by the ballast, not the lamp. It only dims if the fixture already has a dimmable fluorescent ballast and a matching control. On a standard instant-start or rapid-start non-dimming ballast it runs at full output.

The S49948 is a glass tube with a gloss white glass lens and white housing, weighing 0.22 lb. Glass gives a cleaner, more diffuse appearance in open strips but it breaks like a fluorescent tube does. For gym, warehouse aisle or anywhere with impact or food handling exposure, specify a plastic or coated shatterproof LED T8 instead.

Rated life is 50,000 average hours. On a 12 hour per day, 7 day schedule that is over 11 years of lamp life. The practical limit in a Type A retrofit is the existing fluorescent ballast, which will usually fail first, so for facilities standardizing a fleet of fixtures factor ballast age into the relamp plan.

Burning position is universal, so it works base up, base down, horizontal or vertical. Operating range is 120V to 277V at 50/60Hz, with draw between 0.067 and 0.029 amps depending on supply voltage, which covers both 120V and 277V commercial lighting branch circuits.

Beam spread is 210 degrees. A fluorescent tube emits a full 360 degrees, much of which bounces off the reflector before it leaves the fixture. The 210 degree pattern throws light down and out of the housing instead, which is why 1250 lumens from this lamp works in a fixture that previously held a higher-lumen fluorescent.

Order Satco part number S49948. It is a single configuration: 8W, 2 foot, 4000K, gloss white, medium bi-pin. There are no alternate finishes or color temperatures under that number, so a 3500K or 5000K version is a different Satco part.