SATCO Lighting S8892 13W T8 LED, Medium bi-pin Base, 4000K, 50000 Hours, 1900 Lumens, Type A/B, Ballast Dependant or Ballast Bypass

Both ways work. The S8892 is a Type A/B lamp: it will run on a compatible existing fluorescent ballast (Type A) or, with the ballast removed and the sockets wired to line voltage, run direct on mains (Type B ballast bypass). Bypass wiring can be single-ended or double-ended. For a property manager doing a fast lamp swap, Type A gets the fixture back in service with no electrical work; for a retrofit crew already in the fixture, bypassing the ballast removes the part most likely to fail next.

The lamp is rated 120V through 277V at 50/60Hz, so it covers both residential 120V circuits and the 277V lighting branch circuits common in commercial buildings. Current draw runs 0.108A down to 0.047A across that voltage range, which is what you use for figuring how many lamps you can hang on a circuit.

Yes. The S8892 uses a medium bi-pin base, the same base as a standard linear fluorescent T8, and it is a T8 tube shape, so it drops into existing bi-pin tombstone sockets. In Type B bypass mode the sockets themselves may need to be non-shunted depending on whether you wire single-ended or double-ended.

It is an enclosed rated lamp, so sealed wraps, vapor-tight fixtures and gasketed troffers are fair game. Location rating is damp, which covers covered walkways, parking garage soffits and bathrooms, but not direct weather exposure. Burning position is universal, so it can be mounted horizontally, vertically or in a pendant.

4000K is the neutral white that most commercial fluorescent installs run on, so the S8892 generally blends with existing 4000K stock. It is a fixed color temperature, not a selectable CCT lamp, so you cannot field-switch it to 3500K or 5000K. Color rendering is 83 CRI with a frosted lens, which keeps the diodes from reading as hot spots across the tube.

The lamp itself is dimmable. In practice that only works in Type A operation paired with a dimming fluorescent ballast, or in Type B bypass on a line-voltage dimmer suited to LED load. On a standard non-dimming ballast or a plain toggle switch it runs full output. The lamp draws 0.108A to 0.047A depending on supply voltage, which matters when you are sizing a dimmer to a run of tubes.

Beam spread is 180 degrees, so output is thrown out the lens face rather than all the way around the tube the way a fluorescent emits. In a troffer with a reflector that usually means more light down onto the work plane; in an open bare-strip or a pendant where you were relying on uplight off the ceiling, expect the ceiling to go darker. Rated life is 50,000 hours, and the lamp is positioned as a 50W incandescent equivalent at 13W draw.

Order it as Satco S8892. That number covers the 13W T8, medium bi-pin, 4000K, frosted, Type A/B lamp. There is one configuration, so there is no separate code to pick for wiring method or voltage, the lamp handles 120V to 277V and both single and double ended bypass as supplied.

Glass, with a frosted lens and a white housing section. Glass construction is worth knowing where you are relamping gyms, warehouse aisles or anywhere a lamp can take a hit, and some healthcare and food-handling specs call out coated or shatter-resistant tubes instead.