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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ROCKSTONE POWER 5000 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]

ROCKSTONE POWER 5000 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]

Product ID: 1595386

Details

Brand
ROCKSTONE
Item Weight
26 Pounds
Mounting Type
Portable
Power Source
Corded
Specification Met
CE

⚡5000W heavy-duty power

🔌3-mode simultaneous output

🛡️full circuit breaker protection

1991.47 DT

Duties & taxes included

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Description

🌍 Power your world, anywhere, anytime.

READY OUT OF THE BOX - Includes grounded power cord, European adapter, spare fuses, and a 3-year warranty—your global power solution, hassle-free.
POWER THROUGH BORDERS - Seamlessly step up/down voltage between 110-120V and 220-240V for global compatibility.
BUILT TO LAST PROTECT - Robust metal casing with full fuse and overcurrent protection ensures safety and durability under heavy loads.
TRIPLE OUTPUT FLEXIBILITY - Patented 3-mode output with USA 120V socket, universal 220V socket, plus a 5V USB port for all your devices.
MILITARY GRADE RELIABILITY - Trusted by the US Military and Tesla since 2001 and 2018 respectively—engineered for professionals who demand excellence.

The ROCKSTONE POWER 5000 Watt Voltage Converter Transformer is a heavy-duty, CE-certified step up/down power converter designed for global use. It supports simultaneous 110V USA, 220V universal, and 5V USB outputs, features full circuit breaker and overcurrent protection, and comes with a durable metal casing. Trusted by the US Military and Tesla, it includes essential accessories and a 3-year warranty, making it the ultimate power solution for professionals and travelers needing reliable voltage conversion.

Specifications

ASIN	B00J0CF8W4
Best Sellers Rank	#76,198 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #287 in Power Converters
Brand Name	ROCKSTONE POWER
Customer Reviews	4.2 4.2 out of 5 stars (3,409)
EU Spare Part Availability Duration	3 Years
Global Trade Identification Number	00617529014991
Included Components	Power Converter;American to European Grounded Schuko Wall Outlet Plug Adapter;2 PCS Spare Fuses;Instruction Manual
Item Weight	26 Pounds
Manufacturer	E Depot Express
Minimum Frequency	50 Hz
Model	5000 Watt
Mounting Type	Portable
Part Number	5000 Watt
Power Source	Corded Electric
Specification Met	CE
UPC	617529014991
Unit Count	1.0 Count
Warranty Description	3 year manufacturer

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