SATCO Lighting S21415 22W LED PL, CCT Selectable, Lumens Selectable, Type B, Ballast Bypass, White Finish, 120/277V

It is a Type B, ballast bypass lamp. That means the fluorescent ballast has to come out of the circuit and the sockets wired directly to line voltage before the S21415 will operate. Dropping it into a fixture with a live ballast still in place is not how this lamp is built to run. If you want a lamp that works with the existing ballast untouched, you need a Type A (ballast compatible) PL lamp instead, not this one.

Yes, the S21415 is rated 120/277 volt, so the same lamp covers residential and light commercial 120V work and 277V commercial lighting circuits. For a property manager or MRO buyer standardizing across a building with mixed voltage, that means one part number for both, as long as each fixture has been rewired for ballast bypass operation.

No. Because it is a ballast bypass (Type B) lamp, the fixture has to be rewired: the ballast is removed or disconnected and line voltage is landed on the lamp sockets. That is licensed electrician work in most commercial settings and it permanently changes the fixture, so factor the labor in when you are pricing a retrofit across a lot of openings. The upside is no ballast left in the circuit to fail later.

The S21415 lets you pick both the color temperature and the light output on the lamp itself rather than buying a different SKU for each. One 22 watt lamp can be set warmer or cooler to match the rest of the building's fixtures, and the output stepped up or down to suit the space. For stockrooms it cuts the number of PL lamps you have to carry down to one line item.

Satco S21415, in a white finish. It is a single configuration, so the finish is not something you specify separately when ordering, and S21415 is the number to quote to match it later.