and other electrical jacks and suitable wiring so that when one end of the rotation adapter 70 is attached to the upper end of upper section 25c of stand assembly 25 a device such as for example a lamp 7 of fig2 can while maintaining electrical continuity between the top of the stand assembly 25 and the device be attached to the other end of rotation adapter 70 and said device can be rotated to any angle with respect to the plane containing the long axis of the stand assembly a screw or locating pin 71 which serves as a memory and angular position lock and screw locks 72 are means of securing and locking the rotation adapter 70 to the upper section 25c of stand assembly 25 screw or locating pin 71 engages memory lock groove 64 of upper section 25c to fix the angular position of rotation adapter 70 around the long axis of stand assembly 25 screw lock 72 serves to prevent motion parallel to the long axis of stand assembly 25 of the arm of rotation adapter 70 attached to the upper section 25c when screw 73 is not fully screwed into position the angle of the long axes of the two arms 72a of rotation adapter 70 may be adjusted once the proper angle of the two arms 72a of rotation adapter 70 is established screw 73 is fully screwed into position to lock the angle of the long axes of the two arms of rotation adapter 70.