[Arran]

They are easy enough to construct, the difficulty is in finding incandescent light bulbs. What I did was make an extension cord with a pair of standard electrical outlets, and wired it so the bulb filament was in series with the hot side of the line, then I could plug a table lamp into it. If you do it this way you can use a lamp with a trilight bulb, and switch in the desired wattage in stages, trillight bulbs were exempt from the silly bans.