The quality of the product is limited to the level of the connection between the lamp and the arm: a plastic shaft diameter 8 mm, clearly insufficient because it bends as soon as one tries to direct the light of a single hand.
I can not imagine the result if an attempt the maneuver until the end ...
Yet the base, very heavy, was a guarantee of stability during this operation. But ultimately, we must leave it in the position that has been set, hoping for the handle easily.
The hinge system seems more not very tough: there is a safe bet that after a few back and forth, it no longer holds up!
A buy for the price, down to a compact fluorescent lamp with power + and knowingly, to book the most delicate of us.