SATCO Lighting S49947 8W, 2 Foot LED T8, Medium Bi Pin Base, 3500K, 50000 Avg Rated Hours, 1250 Lumens, Type A, Ballast dependent

Yes. The S49947 is a Type A ballast-dependent lamp, so it runs off the existing fluorescent ballast in the fixture. You pull the old F17T8 and put this in, no rewiring and no ballast bypass. The trade-off is that the lamp only works as long as that ballast works; when the ballast fails you either replace the ballast or move to a ballast-bypass (Type B) lamp. It needs a working, compatible ballast to operate at all.

It is rated for indoor use and damp locations, so an unheated basement, a covered walkway or a cooler vestibule is within rating. It is not rated for wet locations, so anything with direct water exposure or open weather needs a wet-location lamp and a gasketed fixture.

Both apply. The lamp is DLC approved, which is what most utility rebate programs require for a listed commercial lighting measure, and it is listed as Title 24 compliant for California work. It is also FCC compliant.

Output is 1250 lumens at 8 watts, with a stated incandescent equivalent of 110W. A standard 2-foot F17T8 fluorescent draws 17 watts, so you are cutting lamp wattage roughly in half at comparable output. Color rendering is 82 CRI.

The S49947 is fixed at 3500K, a neutral white that sits between 3000K warm and 4000K cool. It is not CCT selectable, so the color is what it is out of the box. If your other corridors or offices are already lamped at 3500K this will match; if they are 4000K, order the 4000K version instead rather than mixing them in the same space.

Yes. The lamp is rated 120V to 277V at 50/60Hz, so it covers both 120V residential-style circuits and the 277V branch circuits common in commercial and industrial buildings. Current draw is 0.067 to 0.029A across that range.

The S49947 is a dimmable lamp, but because it is ballast dependent the dimming is handled by the ballast already in the fixture. On a standard non-dimming instant-start or programmed-start ballast it will run at full output only. Dimming requires a dimming fluorescent ballast in the fixture.

Average rated life is 50,000 hours. On a 12-hour-a-day schedule that is over 11 years of service, which is why facility groups standardize on these for stairwells and corridors. Keep in mind the lamp depends on the fixture ballast, so ballast life becomes the practical limit on a relamp cycle.

Order Satco S49947. One configuration only, gloss white, so there is no finish or color temperature choice to specify on the order.