If your trying to plug in a 110 Volt lamp into 240 volt outlet the answer is simple. You must buy a step down transformer, or your lamp will burn out.
eHow is a great resource for topics like this, with articles like "How to Re-Wire a Lamp," "How to Rewire a Lamp with a Rotary Switch," "How to Rewire an Old Lamp," and "How to Wire a Floor Lamp."
You can buy a converter.
If all the components are rated to 220V, yes. Keep in mind that if the appliance was designed for 110V it may arc if 220 is run through it. If you don't know the device can handle 220V, don't run it at 220V. Chances are it was manufactured cleaply and cannot handle the extra voltage.
you need a transformer (instead of rewiring) from 220v to 110v The above answer will work but it is not correct. All lighting fixtures installed in Canada have to be CSA certified. If you really like the design of the lamp then you could consider rewiring it with certified CSA components You can buy replacement lamp parts at any DIY outlet. Change out the lamp cord and plug end along with the lamp (bulb) holder and you will have a certified fixture.
Is the 220V plug 220V only or 110/220V? (The former will have 3 prongs and the former will have 4) If your case is the latter just use the ground, neutral, and one of the hots. This will give you 120V single phase. If the case is the former you can't get 110V off that plug.
UK is 220v
eHow is a great resource for topics like this, with articles like "How to Re-Wire a Lamp," "How to Rewire a Lamp with a Rotary Switch," "How to Rewire an Old Lamp," and "How to Wire a Floor Lamp."
120V appliance will not work on 220V. Use an instrument transformer or voltage regulator to adjust the high voltage to the desired level.
You don't, at least, not legally.
Yes, if you rewire the bed and rewire the plug on the wall to 220 volts.
No, 120 v is not enough.
Brazil has a nominal voltage of 220/380V.
You can buy a converter.
If all the components are rated to 220V, yes. Keep in mind that if the appliance was designed for 110V it may arc if 220 is run through it. If you don't know the device can handle 220V, don't run it at 220V. Chances are it was manufactured cleaply and cannot handle the extra voltage.
This type of a transformer is known as a step up transformer.
220V
220 volt will use less energy.