With so many appliances at home and limited power outlets, we all need a power strip. But with so many to choose from, how do you choose one that is safe and reliable? Here's a guide to help you.

1. Individual on/off switch

There are two types of power strips on the market: single master switch and individual switches. The latter switches off the power of each appliance individually. This saves electricity and reduces the load on the power strip.

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2. USB socket

Most electronic devices (PCs, mobile phones, Bluetooth headsets, etc.) are now charged via USB cables. Some brands have a USB socket (Type A/Type C) to free up additional charging space.

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3. Lightning protection

This feature protects electrical appliances from damage caused by a sudden surge of electricity caused by lightning. Also known as "overcurrent protection" and occurs more frequently in village houses. Consider this if you live in this type of house.

4. Power filtering

An electronic filter is installed between an electronic device and its power source to reduce electromagnetic interference between the device and the power source. This feature is often used in audio equipment, so is a must-have for audio fans.

5. Smart control

With the increasing popularity of Smart Homes, manufacturers are now introducing smart power strips that can be remotely controlled or timed to switch on and off via smart assistants such as Apple Home Kit and Google Assistant or their own app, as well as monitoring household electricity consumption.

1. Check to see if the power strip has passed the BS1363/A standard.

2. Avoid placing the power strip in a humid or dusty environment or under direct sunlight to prevent it from overheating or leaking power. Keep it out of reach of children.

3. According to the Electrical Products (Safety) Regulations, the current rating for a 3-pronged power strip is 13A with a maximum power of 2,860 W (13A x 220V), regardless of the number of sockets. For example, for a power strip with 5 sockets, if each appliance needs 300W of power, the total power consumption is 1,500W, leaving a balance of 1,360W. If one of the sockets is plugged into a 2,000W appliance, the total balance of the other four sockets is 860W.

4. Only one power strip or universal plug should be connected to each power outlet. Do not add on any additional plugs to avoid overloading the power strip.

5. Avoid placing the power strip in a humid area. If water is accidentally splashed onto the power stri the power stripp, remove the plug and drain the water. Ensure the power strip is completely dry before use.

6. Whenever an appliance is not in use, switch it off immediately and turn off the relevant individual switch on the power strip. If the power strip has a master switch type, unplug it.