Matsushita Electric Works (Panasonic) WTK8511W Automatic Switch with Infrared Sensor Wall-mounted Cosmo Series Wide 21 For incandescent lamps, 120W, 2-wire type, brightness sensor, manual switch, white This is a leftover from a renovation, and while it was used, I haven't been able to confirm its operation, so I'm selling it as junk. There is some yellowing due to age. Installation requires a qualified electrician.