This simlpe device can be used to connect laptop or mp3 chargers to electrical network thru simple lamp socket.
To connect to lamp socked used old "energy saving" lamp.
Inside we have 2 wires, red - wire connected to metall contact, black - resistor in termo shrinking tube.
Red wire soldered to one of new wires, Black - removed with tip contact (pushed out)
Black wire with resistor replaced with new one and fixed by tip contact
new wires fixed to protect it from damaging
Wires connected to standard electrical socket and ready to use with any wall socket charger.
Just insert lamp side to standart lamp socked and iphone or laptop charger to power socket on second side.