seven star st 1000 Step Up/Down transformer converts 220-240 volts down to 110-120 Volts or 110-120 volts up to 220-240 volts. 1000 WATTS;

seven star st 1000 Step Up/Down transformer converts 220-240 volts down to 110-120 Volts or 110-120 volts up to 220-240 volts. 1000 WATTS How to find correct Voltage Converter To determine the right voltage converter for your appliance, first find out the voltage (110 or 220 Volt AC) and wattage rating (watts or amps) information on the back or bottom of the appliance or from instruction book of an appliance. If no watts are shown and only amps are shown, multiply the volts (input AC) by the amps to find the watts. For example, Volts (AC input) x Amps(amperage) = Watts (Wattage) 110V x 0.5A = 55W The size of a voltage converter is defined by the wattage. Therefore, the size you'll need depends on which devices you'll be powering and the number of watts they use. We would recommend using a voltage converter / transformer which has a Wattage that is 2 to 3 times higher than your appliance. Certain appliances such as power tools, motors, laser printers and TVs require a converter 2-3 times the Watts that the appliance is rated for because they require a surge of power when they are turned on. This extra wattage is a precautionary measure to ensure that your equipment will function properly and that the voltage converter will not be damaged. Keep in mind that a transformer with a higher watt rating will never hurt your appliance, however if you buy one that is not strong enough, it will not work. Instructions 1. On back of the transformer, select input voltage according to country of use . At 110 volts countries such as USA, set the input voltage switch to 110 volts. . At 220 volts countries in Europe, Middle East, Asia, Africa, etc., set the input Voltage switch at 220 volts. 2. High Humming sound may be hard if set incorrectly, disconnect immediately. 3. After selecting the correct input voltage on the back of the transformer, push ON/OFF switch to the ON position. 4. Check the watts on your equipment to make sure you are not exceeding the max watts of the converter. Please remember to multiply the watts consumption of your equipment by 2-5 times to accounts for voltage spikes 5. Do not let it be over maximum capacity of the transformer. 6. Turn off when not in use.