SATCO Lighting S39903 9W T8 LED, 2Ft, 5000K, Medium Bi Pin Base, 50000 Avg Rated Hours, 1150 Lumens, Type B, Ballast Bypass

Yes. The S39903 is a Type B ballast bypass lamp, so the fixture's fluorescent ballast has to be removed and line voltage wired directly to the sockets. It runs on either single-ended or double-ended wiring, so it works with the two common bypass wiring methods. If you want a tube that runs on the existing ballast with no rewiring, you need a Type A lamp instead, not this one.

Yes. The lamp accepts single ended or double ended wiring, so it works whether line and neutral land on the pins at one end or are split across both ends. Confirm which method you have used and label the fixture, since a bypassed fixture is no longer safe for a fluorescent lamp.

5000K is a crisp daylight white, no yellow cast. That is the color property managers and MRO buyers usually standardize on for shops, garages, warehouses, stairwells, and back-of-house areas. For warmer office or hospitality spaces you would want a lower Kelvin tube instead.

The S39903 draws 9 watts and delivers 1150 lumens. A typical 2-foot fluorescent it replaces is a 17 watt lamp, so you get comparable output at roughly half the input wattage, with 50,000 average rated hours of life.

For a fleet retrofit it makes sense only if you are prepared to bypass the ballast in every fixture, which is electrician labor per fixture. The payoff is 9 watts per lamp with the ballast gone entirely, 1150 lumens, and 50,000 average rated hours, so there is no ballast left to fail later. If you want a lamp-only swap with no rewiring, this is not the part.

Satco S39903. It is the 9 watt 2-foot T8 in 5000K with a medium bi-pin base, gloss white finish, Type B ballast bypass. That MPN covers the single configuration, so there is nothing further to specify on the order.