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Voltage stabilisers
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Kowloon Power Care

Our 3 kVA home stabilisers start from about HK$700, with delivery to Kowloon and Sha Tin. What is the total load in watts, and is your supply single phase?

Tuen Mun Grid Guard

We supply 5 to 10 kVA units from about HK$2,700, delivered to Tuen Mun and Tsuen Wan. Which appliances do you want to protect, and what input voltage range do you see?

Central Volt Solutions

We offer servo-type units with digital display from about HK$700 up to HK$6,700, and deliver to Central. Which appliances do you want to connect, and is the building single phase?

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Voltage stabilisers in Hong Kong: what they cost and how to order

Voltage stabilisers in Hong Kong are listed at about HK$700 to HK$3,900 for a home unit of around 3 kVA, HK$2,700 to HK$6,700 for units from 5 to 10 kVA, and about HK$15,900 to HK$17,700 for the largest models. These are approximate prices from sellers' websites, November 2026. Send the appliances, the total load and your grid voltage in a request on BlaBlaPrice to get offers.

Approximate prices in Hong Kong, November 2026 (sellers' websites)
UnitSizePrice range
Small home unit500 VA to 1 kVA, single phaseHK$1,150 to HK$1,300
Home unitAbout 3 kVA, single phaseHK$700 to HK$3,900
Medium unit5 to 10 kVAHK$2,700 to HK$6,700
Large unit15 to 18 kVAHK$15,900 to HK$17,700

Electrical safety rules and plugs

Hong Kong's electrical product safety rules require a warning on a product designed only for a voltage below 200 V single phase, so a 110 V unit must carry one. Some household products sold here are designed for another voltage. Adaptors are generally of the BS 1363 or BS 546 type to match Hong Kong sockets, so check the plug type on any stabiliser or adaptor before you buy. Ask the seller to confirm the label and the input range in volts.

Season and summer load

Summer runs from June to August and is hot and humid, when air-conditioners and fridges run hardest, which is when a stabiliser is most useful. Winter, from December to February, is cooler. Buying in November gives you time to have the unit installed before the summer load starts.

Ratings, units and installation

Ratings are given in volt-amperes (VA) or kilovolt-amperes (kVA). A 3 kVA unit is a home size, while 15 kVA and above suits larger buildings. Ask whether the unit is single phase or three phase, and whether installation is included. Ask for the total with delivery to Central, Kowloon, Sha Tin, Tsuen Wan or Tuen Mun.

What to write in your request

List what you want to connect (fridge, air-conditioner, computer or TV), the total load in watts, whether the supply is single or three phase, the grid voltage you measure, the stabiliser type (servo or relay), the make and model if known, the delivery city and your budget in HK$.

BlaBlaPrice's AI reads your request, asks for missing details and looks through sellers' websites and price lists in Hong Kong, then shows the prices and businesses it found. Sellers registered here reply in the chat with price, terms and delivery. See also Backup power and UPS units.

Questions and answers

How much does a voltage stabiliser cost in Hong Kong?

A home unit of about 3 kVA is listed from about HK$700 to HK$3,900, and 5 to 10 kVA units from about HK$2,700 to HK$6,700.

Can I use a 110 V stabiliser here?

Hong Kong's safety rules require a warning on a product designed only for a voltage below 200 V single phase, so ask the seller to confirm the label and input range.

Will the plug fit a Hong Kong socket?

Look for the BS 1363 or BS 546 type, which match Hong Kong sockets, or ask for a suitable adaptor.

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