Once correctly setup (see this faq on how to do this) the R9 Desk Lamp Head can be adjusted in a number of ways.
The R9 Lamp head has 110 degrees of clockwise rotation from the neutral, correct starting position and 180 degrees rotation counterclockwise back to the ‘storage’ position. You should never try to force the lamp head beyond this range of rotation.
Each of the twin light bars independently rotates through 310 degrees, allowing you to spread light in any direction. Again, the light bars should not be forced past this range.
The lamp head itself will also articulate via the “wrist joint” directly below the power button. The joint will allow the head to be angle upwards to 40 degree angle and straight to 90 degrees.