The TaoTronics is absolutely identical to the model of Saicoo. Both have the same functions. The only difference is the operation knobs and Traffo (this mach in Saicoo to be more stable). I then but for the slightly more expensive TaoTronics decided there, a manual came with in German and I had the feeling that this lamp is somewhat brighter. The lamp base may be a little more difficult for both lamps because the lamp no longer stops at some other display. Why only 4 stars.