How would i change 220v to 110v? i set the 2 prong plug at the back of machine to 110v. what should i do at the front?

Since you plan to use your appliances (200V-240V) in the United States, please make sure to select 110V from the Input Voltage Selector on the back of the ROCKSTONE POWER Voltage Converter Transformer (The factory default setting is on 240V). Plug the power cord into the U.S. wall/power outlet and switch on the Voltage Converter Transformer without plugging in any appliances. The Power Source indicator red light will turn on. Then, plug your appliance's plug into the 220V output outlet located on the front panel (please use a plug adapter if needed) and switch on your appliance.

What is the output Hz?

so if I use a double ended bulb 1200w 90 hz it will work perfectly too ??

How to install fuses?

The fuse holder is on the back of the transformer (above the power cord), please loosen the screw with a screwdriver to replace the fuse if needed. (Package includes 2pcs spare fuses). Please make sure that the fuse and/or the fuse holder is tightened securely when replaced.

Can this work with 220Watts wet grinder purchased from India?

220 watts is probably the running current of the wet grinder... the start up current may be higher. I would try the 1000 watt unit. And you can exchange it if it has trouble with start up for the 2000 watt model which should have more than enough capacity.

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🌍 Power Your Global Hustle with RockStone’s Heavy Duty Voltage Converter!

MILITARY GRADE TRUST - Trusted by Tesla and US Military since 2001, this converter is your passport to worldwide power confidence.
CERTIFIED RELIABILITY - CE certified with a 3-year warranty—engineered for peace of mind and long-term performance.
POWER THROUGH ANY PLUG - Seamlessly step up or down voltage between 110-240V to power your global gadgets without a hitch.
BUILT TO LAST PROTECT - Robust metal casing with full fuse and overcurrent protection ensures your devices and transformer stay safe.
TRIPLE OUTPUT CONVENIENCE - Charge via 5V USB, 120V USA socket, or 220V universal socket all at once—perfect for multitasking pros.

The RockStone Power 1000 Watt Voltage Converter is a heavy-duty step up/down transformer designed for professional-grade voltage conversion between 110-120V and 220-240V. Featuring patented simultaneous 3-mode output (5V USB, 120V USA, 220V universal), full circuit breaker protection, and a durable metal casing, it’s CE certified and backed by a 3-year warranty. Ideal for global travelers, remote workers, and professionals needing reliable, safe power conversion for electronics and appliances.

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UPC	617529014595 617529014465
Manufacturer	E Depot Express
Part Number	1000 watt
Item Weight	13 pounds
Product Dimensions	11.5 x 10 x 8.25 inches
Item model number	1000 watt
Is Discontinued By Manufacturer	No
Size	1000 Watt
Color	Black
Style	Universal
Wattage	1000 watts
Item Package Quantity	1
Included Components	Power converter
Batteries Included?	No
Batteries Required?	No
Warranty Description	3 year manufacturer

1000 Watt Voltage Converter Transformer - Heavy Duty Step Up/Down AC 110V/120V/220V/240V Power Converter - Circuit Breaker Protection – DC 5V USB Port - CE Certified [3-Year Warranty]

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