Electric Saving Box - 30KW Electricity Power Saving Box 90V-250V Intelligent Power Saver

What the maker says it does

The manufacturer describes this as an intelligent power saver: a plug-and-play device rated for 30 kW across 90–250 V, said to be compatible with air conditioners, washing machines, refrigerators, fans, televisions, water pumps, stereos and fluorescent lamps. Their claim is that by improving power factor and reducing power loss it lowers the electricity those appliances draw, cuts your bill, and prolongs the service life of the equipment.

Those are the maker's claims. Below is what we can tell you about how they square with the way your home is billed — because we would rather you had that before you order than after.

How a domestic meter actually bills you

A household electricity meter measures real energy — kilowatt-hours actually consumed. Devices in this category work on power factor, which is about reactive current circulating between the grid and motorised appliances. Industrial and commercial customers can be charged for poor power factor. Domestic customers, on standard residential tariffs, are not.

That is the gap worth understanding: the thing this device is designed to act on is not the thing your home bill is calculated from. The manufacturer supplies no measured before-and-after consumption data for this unit, and independent testing of this device class has not demonstrated a reduction in domestic bills.

The device itself

It is a small moulded module with integral mains prongs and an indicator light on the front. There is nothing to install, wire or configure — it goes into a wall socket and the light comes on. Choose the US, UK or EU plug at checkout.

Rated 30 kW, 90–250 V

The wide voltage range covers both 110 V and 230 V mains, which is why it ships with a choice of three plug types rather than one.

Specifications

• Rating: 30 kW, as specified by the manufacturer
• Voltage range: 90 – 250 V
• Fitting: plug-and-play into a standard wall socket
• Plug: US, UK or EU, chosen at checkout
• Supplied test data: none
• In the box: one unit

Energy-saving figures on this page are the manufacturer's stated claims. Household electricity is billed on real energy consumption in kWh; power-factor correction is not billed on standard residential tariffs. Do not use the device as a substitute for addressing faulty or unsafe wiring, and unplug it if it becomes warm or discoloured.