SATCO Lighting S11918 10W T8 LED, CCT Selectable, G13 Base, 50000 Avg Rated Hours, Type A, Ballast Dependent, 2PK

Yes, that is the point of a Type A lamp. The S11918 runs off the existing fluorescent ballast, so it goes straight into the G13 medium bi-pin sockets with no rewiring. The catch is ballast compatibility: it needs a working ballast and Satco calls for checking the ballast against the lamp before you install. If the ballast is failing or unlisted, you are better off with a ballast-bypass (Type B) lamp and a rewire.

It is a CCT selectable lamp covering 4000K, 5000K and 6500K, so one part number handles cool white through daylight. That is useful when you are standardizing stock across a building and want one lamp on the shelf instead of three. Color rendering is 83 CRI at any of the settings.

The lamp is rated 120V through 277V at 50/60Hz, so it covers both 120V residential circuits and 277V commercial lighting branch circuits. Current draw runs 0.083 to 0.036A depending on the operating voltage.

Yes. It is a T8 shape with a G13 medium bi-pin base, the same lamp holder standard used by conventional 4-foot T8 fluorescent tubes, so it seats in existing tombstones.

1800 lumens on 10 watts, with a 50W incandescent equivalence rating. Beam spread is 220 degrees, so light wraps around the tube rather than firing in one direction, which matters in wraps and troffers with reflectors.

Damp location rated and classified for indoor use. That covers enclosed damp spots such as bathrooms, kitchens, and covered interior areas, but not wet locations or direct exposure to weather. Burning position is universal, so it can be mounted horizontally, vertically, or at an angle.

The lamp itself is listed as dimmable, but because it is a ballast dependent Type A design, dimming performance is controlled by the fluorescent ballast in the fixture, not the lamp. If the ballast is a non-dimming instant start unit, you will get on/off only. Check the ballast against Satco's compatibility list before committing to a dimmed installation.

The S11918 ships as a 2 pack, rated at 50,000 average hours. For an MRO buyer stocking a facility, that is roughly the difference between relamping once a decade instead of every couple of years on fluorescent.

Glass construction, with a frosted glass lens and a white housing. Glass tubes diffuse evenly and resist yellowing, but in a gym, school corridor, or anywhere impact is a concern, a plastic or coated hybrid tube is the safer choice.