This is a National semiconductor fluorescent lamp lighting fixture, model SQ927B. The power turns on. The high/low button responds, but the brightness doesn't change. The neck can be moved to use it at various angles. There is a slight wobble, but it's not a problem for use. ■ Electronic touch switch With brightness adjustment function ■ Body dimensions Shade 335mm Arm 265mm Base 235mm Base 180 x 230 x 7mm ■ Lamp used 27W twin 1 fluorescent lamp (FPL27EX-N)