Transformer 1000 watt step up/ down 110-220

My acquaintance is an optician and couldn't plan with his apparatus active only with voltage 220v so afterwards I ordered him this agent who convert 110v to 220v now he's blessed because the ability agent is up and down and down to up that beggarly can accomplish plan annihilation with some switches. acceptable artefac.
Product Features
* 1000 watts continuous power
* On and Off Switch
* 2 Spare Fuses Included
* FREE Grounded Adapter Included
* Heavy Duty Power Bright VC1000W Voltage Transformer 1000 Watt Step Up/Down 110 Volt - 220 Volt