I have bought one and modified the base with a very strong circular magnet, this was very simple and only needed a couple of holes drilling and a piece of metal turned to shroud the magnet and then all glued up.
The light has one fault, it can swing if too much of the wand is sticking out from its anchor point. In retrospect i would fit two magnets to stop this swivelling.
All round this light gives good illumination right where it is needed. Bear in mind it cost £10 but with postage it is £15.
Clive