CSD2X2L(U) Drop-In Ceiling Speakers are 8-ohm, full-range speakers that allow for fast and easy installation, which saves installation time, effort, and cost. CSD2X2L(U) is a 2' x 2' speaker that fits perfectly into place in 2' x 2' ceiling grids – without needing to cut ceiling tiles or requiring the use of tile support rails. The CSD2X2L(U) can also be easily installed in 2' x 4' ceiling grids – just make one cut to the ceiling tile, position the support rail (included), and drop the speaker into place. "U" version has a bright white finish.